Home
Class 7
MATHS
The sum of three expressions is x^(2)+y^...

The sum of three expressions is `x^(2)+y^(2)+z^(2)`. If two of them are `4x^(2)-5y^(2)+3z^(2)` and `-3x^(2)+4y^(2)+2z^(2)` then the third expression is

A

`2x^(2)+2z^(2)`

B

`2y^(2)`

C

`2x^(2)+2y^(2)-z^(2)`

D

`2y^(2)+2z^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ALGEBRAIC EXPRESSIONS

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET-6 |1 Videos

  • ALGEBRAIC EXPRESSIONS

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET-7|1 Videos

  • ALGEBRIC IDENTITIES

    S CHAND IIT JEE FOUNDATION|Exercise Self Assessment Sheet-7|10 Videos

Similar Questions

Explore conceptually related problems

Solve the expression (2x + 3y - 4z ) ^(2).

The radius of the sphere x^(2)+y^(2)+z^(2)=12x+4y+3z is

Factorize each of the following expressions: x(x^(2)+y^(2)-z^(2))+y(-x^(2)-y^(2)+z^(2))-z(x^(2)+y^(2)-z^(2))

The least value of expression x^(2)+4y^(2)+9z^(2)-2x+8y+27z+15 is

Number of terms in the expression 3x^2+y - 2y^2z - z^2x + 5 is

Add the following expressions: 5x^(2) + 7y - 6z^(2) , 4y + 3x^(2), 9x^(2) + 2z^(2) - 9y and 2y - 2x^(2)

The value of the expression ((x ^(2) - y ^(2)) ^(3) + ( y ^(2) - z ^(2)) ^(3) + (z ^(2) - x ^(2)) ^(3))/((x - y) ^(3) + ( y - z) ^(3) + (z - x ) ^(3)) is

If x:y:z=2:3:4 , what is the value of ((x^(2)+2y^(2)+z^(2))/(3x^(2)-2y^(2)+4z^(2))) ?

Add : x y ^(2) z ^(2)+ 3x ^(2) y ^(2) z - 4x ^(2)yz ^(2), - 9x ^(2) y ^(2) z + 3x y ^(2) z ^(2) + x ^(2) yz ^(2)