Home
Class 8
MATHS
Subtract : a^(2) + ab + b^(2) from 4a^...

Subtract :
`a^(2) + ab + b^(2)` from `4a^(2) - 3ab + 2b^(2)`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of subtracting \( a^2 + ab + b^2 \) from \( 4a^2 - 3ab + 2b^2 \), we will follow these steps: ### Step 1: Write the expression for subtraction We need to subtract \( a^2 + ab + b^2 \) from \( 4a^2 - 3ab + 2b^2 \). This can be expressed as: \[ (4a^2 - 3ab + 2b^2) - (a^2 + ab + b^2) \] ### Step 2: Distribute the negative sign Next, we distribute the negative sign across the second expression: \[ 4a^2 - 3ab + 2b^2 - a^2 - ab - b^2 \] ### Step 3: Combine like terms Now, we will combine the like terms: - For \( a^2 \) terms: \( 4a^2 - a^2 = 3a^2 \) - For \( ab \) terms: \( -3ab - ab = -4ab \) - For \( b^2 \) terms: \( 2b^2 - b^2 = 1b^2 \) Putting it all together, we have: \[ 3a^2 - 4ab + b^2 \] ### Final Answer Thus, the result of subtracting \( a^2 + ab + b^2 \) from \( 4a^2 - 3ab + 2b^2 \) is: \[ 3a^2 - 4ab + b^2 \] ---
Promotional Banner

Topper's Solved these Questions

  • ALGEBRAIC EXPRESSIONS

    ICSE|Exercise Exercise 11(C)|45 Videos
  • ALGEBRAIC EXPRESSIONS

    ICSE|Exercise Exercise 11 (D)|21 Videos
  • ALGEBRAIC EXPRESSIONS

    ICSE|Exercise Exercise 11 (A)|30 Videos
  • AREA OF A TRAPEZIUM AND A POLYGON

    ICSE|Exercise EXERCISE 20(D)|21 Videos

Similar Questions

Explore conceptually related problems

Factorise : 4a^(2) - 4ab+ b^(2) - 4x^(2)

Subtract: a^2-3a b from 2a^2-7a b

Subtract: 5a^2+7ab-2b^2+4 from 7a^2-ab+2b^2

Subtract: 2a-b from 3a-5b

Subtract : -1/2 ab " from " -2/3 ab

Subtract : 3ab - 2bc + 5ca " from " 2ab + 3bc - 7ca

Factorise : 5a^(2) - b^(2) - 4ab + 7a - 7b

Factorise : 2ab^(2) c - 2a + 3b^(3) c - 3b - 4b^(2) c^(2) + 4c

If quadratic equation ax^(2) + bx + ab + bc + ca - a^(2) - b^(2) - c^(2) = 0 where a, b, c distinct reals, has imaginary roots than (A) a+b+ab+bc+calta^(2)+b^(2)+c^(2) (B) a-b+ab+bc+cagta^(2)+b^(2)+c^(2) (C) 4a+2b+ab+bc+calta^(2)+b^(2)+c^(2) (D) 2(a+-3b)-9{(a-b)^(2)+(b-c)^(2)+(c-a)^(2)}lt0

Multiply (7a^(2) b - 5ab^(2) +3ab) " by " (- 2ab)

ICSE-ALGEBRAIC EXPRESSIONS -Exercise 11 (B)
  1. Subtract : x^(3) - 4x - 1 from 3x^(3) - x^(2) + 6

    Text Solution

    |

  2. Subtract : 6a + 3 from a^(3) - 3a^(2) + 4a + 1

    Text Solution

    |

  3. Subtract : cab - 4cad - cbd from 3abc + 5bcd - cda

    Text Solution

    |

  4. Subtract : a^(2) + ab + b^(2) from 4a^(2) - 3ab + 2b^(2)

    Text Solution

    |

  5. Take away -3x^(3) + 4x^(2) - 5x + 6 from 3x^(3) - 4x^(2) + 5x - 6

    Text Solution

    |

  6. Take m^(2) + m + 4 from -m^(2) + 3m + 6 and the result from m^(2) + m ...

    Text Solution

    |

  7. Subtract the sum of 5y^(2) + y - 3 and y^(2) - 3y + 7 from 6y^(2) + y ...

    Text Solution

    |

  8. What must be added to x^(4) - x^(3) + x^(2) + x + 3 to obtain x^(4) + ...

    Text Solution

    |

  9. How much more than 2x^(2) + 4xy + 2y^(2) is 5x^(2) + 10xy - y^(2) ?

    Text Solution

    |

  10. How much less 2a^(2) + 1 is than 3a^(2) - 6 ?

    Text Solution

    |

  11. If x = 6a + 8b + 9c, y = 2b - 3a - 6c and z = c - b + 3a, find : x +...

    Text Solution

    |

  12. If x = 6a + 8b + 9c, y = 2b - 3a - 6c and z = c - b + 3a, find : x -...

    Text Solution

    |

  13. If x = 6a + 8b + 9c, y = 2b - 3a - 6c and z = c - b + 3a, find : 2x ...

    Text Solution

    |

  14. If x = 6a + 8b + 9c, y = 2b - 3a - 6c and z = c - b + 3a, find : 3y ...

    Text Solution

    |

  15. The sides of a triangle are x^(2) - 3xy + 8, 4x^(2) + 5xy - 3 and 6 - ...

    Text Solution

    |

  16. The perimeter of a triangle is 8y^(2) - 9y + 4 and its two sides are 3...

    Text Solution

    |

  17. The two adjacent sides of a rectangle are 2x^(2) - 5xy + 3z^(2) and 4x...

    Text Solution

    |

  18. What must be subtracted from 19x^(4) + 2x^(3) + 30x - 37 to get 8x^(4)...

    Text Solution

    |

  19. How much smaller is 15x - 18y + 19z than 22x - 20y - 13 z + 26 ?

    Text Solution

    |

  20. How much bigger is 5x^(2)y^(2) - 18xy^(2) - 10x^(2)y than -5x^(2) + 6x...

    Text Solution

    |