Question

Please answer this!
In squaring (2x+3), what will be the middle term?
A. -12x
B. -6x
C. 6x
D. 12x

Answer 1

(2x + 3)^2

= 2x^2 + 9

There is no middle term in this expression

Answer 2

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Please answer this!

In squaring (2x+3), what will be the middle term?

A. -12x

B. -6x

C. 6x

${\boxed {\boxed {D. 12x}}}$

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$formula \\ {(x + y)}^{2} = {x}^{2} + 2xy + {y}^{2}$

${(2x + 3)}^{2} = {(2x)}^{2} + 2(2x)(3) + {(3)}^{2}$

${(2x + 3)}^{2} = 4 {x}^{2} + 12x + 9$

$middle \: term \: is \: 12x$

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