Math, asked by nishkamittal, 1 year ago

16(5x+4)²- 9(3x-2)²

Answers

Answered by bazelasaleem

4

Answer:

answer: 16(5x+4)²-9(3x-2)²=319x²+748x+175

Step-by-step explanation:

=16[(5x)²+2*5x*4+4²]-9[(3x)²-2*2*3x+2²]

=16(25x²+40x+16)-9(9x²-12x+4)

=400x²+640x+256-81x²+108x-36

=400x²-81x²+640x+108x+256-81

=319x²+748x+175

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