Home
Class 7
MATHS
Let's express the following in perfect s...

Let's express the following in perfect square and hence find the value.
`25a^2 - 30ab + 9b^2` `when` `a = 1, b=1`

Promotional Banner

Topper's Solved these Questions

  • ADDITION, SUBSTRATION MULTIPLICATION & DIVISION OF INTEGERS

    JNAN PUBLICATION|Exercise EXAMPLE|78 Videos
  • ALGEBRAIC OPERATIONS

    JNAN PUBLICATION|Exercise EXAMPLE|98 Videos

Similar Questions

Explore conceptually related problems

Let's express the following in perfect square and hence find the value. p^2q^2 + 10pqr + 25r^2 When p = 2 ,q = -1, r = 3

Let's express the following square and hence find the value. 64a^2 + 16a + 1 when a = 1

Let's express the following in perfect square and hence find the value. 64 - frac(16)(p) + frac(1)(p^2) , when p = -1

Let's express the following as perfect square. 9a^2 + 24ab + 16b^2

Let's express the following as perfect square. 16a^2 - 40ac + 25c^2

Let's express the following as perfect square. 4p^2 - 2p + frac(1)(4)

Let's express the following as perfect square. 1 + frac(4)(a) + frac(4)(a^2)

Find the value of 12a^2+2ab+b^2 and a^3-b^3 when a=1, b=3.

Let's express the following algebraic fractions in the reduced from: frac(a^2 - ab + b^2)(a^2 + ab) div frac(a^3 + b^3)(a^2 - b^2)

Using formula, let's solve each of the following problems- Let's find the value of a^2 + b^2 when, ab=24, a-b = 2

JNAN PUBLICATION-ALGEBRAIC FORMULA-EXAMPLE
  1. Let's express the following as perfect square. 9a^2 + 24ab + 16b^2

    Text Solution

    |

  2. Let's express the following square and hence find the value. 64a^2 +...

    Text Solution

    |

  3. Let's express the following in perfect square and hence find the value...

    Text Solution

    |

  4. Let's express the following in perfect square and hence find the value...

    Text Solution

    |

  5. Let's express the following in perfect square and hence find the value...

    Text Solution

    |

  6. Let's apply,(a+b)^2 + (a-b)^2 = 2(a^2 + b^2) or (a+b)^2-(a -b)^2= 4ab ...

    Text Solution

    |

  7. ,(a+b)^2 + (a-b)^2 = 2(a^2 + b^2) or (a+b)^2 - (a -b)^2= 4ab or ab = ...

    Text Solution

    |

  8. Let's apply,(a+b)^2 +( a-b)^2 = 2(a^2 + b^2) or (a+b)^2-(a -b)^2 =4ab ...

    Text Solution

    |

  9. Let's apply,(a+b)^2 + (a-b)^2 = 2(a^2 + b^2) or (a+b)^2-(a -b)^2 =4ab ...

    Text Solution

    |

  10. Let's apply,(a+b)^2 +( a-b)^2 = 2(a^2 + b^2) or (a+b)^2-(a -b)^2 =4ab ...

    Text Solution

    |

  11. Let's apply,(a+b)^2 + (a-b)^2 = 2(a^2 + b^2) or (a+b)^2-(a -b)^2 =4ab...

    Text Solution

    |

  12. Let's apply,(a+b)^2 + (a-b)^2 = 2(a^2 + b^2) or (a+b)^2-(a -b)^2 =4abo...

    Text Solution

    |

  13. Using the identity (x+a)(x+b) = x^2 + (a+b)x + ab, let's find the prod...

    Text Solution

    |

  14. Using the identity (x+a)(x+b) = x^2 + (a+b)x + ab, let's find the prod...

    Text Solution

    |

  15. Using the identity (x+a)(x+b) = x^2 + (a+b)x + ab, let's find the prod...

    Text Solution

    |

  16. Using the identity (x+a)(x+b) = x^2 + (a+b)x + ab, let's find the prod...

    Text Solution

    |

  17. Using the identity (x+a)(x+b) = x^2 + (a+b)x + ab, let's find the prod...

    Text Solution

    |

  18. Using the identity (x+a)(x+b) = x^2 + (a+b)x + ab, let's find the prod...

    Text Solution

    |

  19. Using formula let's show that. (2x + 3y)^2 - (2x - 3y)^2 = 24xy

    Text Solution

    |

  20. Using formula let's show that. (a+2b)^2 + (a-2b)^2 = 2(a^2 + 4b^2)

    Text Solution

    |