Question

Subtract :3x + 4x-7 from 2x2 +
9x-7​

Answer 1

Step-by-step explanation:

Sum of 3x

2

−5x+2 and −5x

2

−8x+6

=(3x

2

−5+2)+(−5x

2

−8x+6)

Rearranging and collecting the like terms, we get:

=3x

2

−5x

2

−5x−8x+2+6

=(3−5)x

2

−(5−8)x+2+6

=−2x

2

−13x+8

Now Subtract 4x

2

−9x+7 from −2x

2

−13x+8

(−2x

2

−13x+8)−(4x

2

−9x+7)

=−2x

2

−13x+8−4x

2

+9x−7

=−2x

2

−13x+8−4x

2

−9x−7

Rearranging and collecting the like terms, we get:

=−2x

2

−4x

2

−13x−9x+8−7

=(−2−4)x

2

−(13+9)x+8−7

=−6x

2

−4x+1