Asked by pavleen

(7x+4)(2x+4)
Answered by helper
(7x + 4)(2x + 4)

Use FOIL-First, Outer, Inner, Last
First-7x * 2x = 14x^2
Outer-7x * 4 = 28x
Inner-4 * 2x = 8x
Last-4 * 4 = 16

Put together,
14x^2 + 28x + 8x + 16

Combine like terms,
14x^2 + 28x + 8x + 16
14x^2 + 36x + 16

All the problems you have posted are done the same way.

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