Question

5x2x2-8,8x2-7x-9
$5x - 2x {}^{2} - 8 + 8x { }^{2} - 7 x - 9$
solution
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Answer 1

Answer:

Required sum,

=(5x−2x

2

−8)+(8x

2

−7x−9)+(3+7x

2

−2x)

Collecting like terms,

=2x

2

+8x

2

+7x

2

+5x−7x−2x−8−9+3

=(−2+8+7)x

2

+(5−7−2)x+(−8−9+3)

=13x

2

−4x−14