Question

(2x+7)(2x+1)=======​

Answer 1

Answer:

(2x+7)(2x+1)

multiplying we get

4x^2+2x+14x+7

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Answer 2

$solution = (2x + 7)(2x + 1) \\ \\ \\ = 2x(2x + 1) + 7(2x + 1) \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2x \times 2x + 2x \times 1 + 7 \times 2x + 7 \times 1 \\ \\ = 4 {x}^{2} + 2x + 14x + 7 \\ \\ = 4 {x}^{2} + 16x + 7 \: \: \: \: \: \: \: \: \: \:$