The correct option is A 4x^2+5x=x(4x+5) (2x)^2+5x=4x+5x=9x L.H.S=(2x)^2+5x nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; nbsp; ...

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Combination

Simplify: 2...

Question

Simplify: $(2 x)^{2} + 5 x$

4 x^{2} + 5 x = x (4 x + 5)

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x^{2} + 5 x = x (x + 5)

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4 x + 5 x = x (4 + 5)

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4 x^{2} - 5 x = x (4 x - 5)

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Solution

The correct option is A $4 x^{2} + 5 x = x (4 x + 5)$
$(2 x)^{2} + 5 x = 4 x + 5 x = 9 x$
$L . H . S = (2 x)^{2} + 5 x$
$= 4 x^{2} + 5 x \neq R . H . S$
The correct statement is $(2 x)^{2} + 5 x = 4 x^{2} + 5 x$

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