(i) (2x + 7) (5x + 9) - (4x + 1) (x-3)
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(2x+7) (5x+9)- (4x+1)(x-3)
=10x^2 +18x+35x+63-[ 4x^2-12x+x-3]
= 6x^2 + 64x+63
I hope it helps you
baibhavjha:
wrong
correct answer is -4x3+22x2+52x+66
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