Question

Preform the subtraction: (5x^2 -3xy +10y^2) - (12x^2 +11xz- 7z^2)

Answer 1

we are given

`(5x^2 -3xy +10y^2) - (12x^2+11xz-7z^2)`

we have to subtract

step-1: Distribute negative sign

`=5x^2 -3xy +10y^2-12x^2-11xz+7z^2`

step-2:Combine like terms

`=5x^2 -12x^2-3xy -11xz+10y^2+7z^2`

`=-7x^2-3xy -11xz+10y^2+7z^2`

we get

`=-7x^2-3xy -11xz+10y^2+7z^2`............Answer