Question

Simplify 2x^2+5x=x^2+3x and find the value for x=2 .​

Answer 1

Answer:

$2x {}^{2} + 5x = x {}^{2} + 3x \\ 2x {}^{2} - x {}^{2} = 3x - 5x \\ x {}^{2} = - 2x \: \: \: \: (x = 2)$

$(2) {}^{2} = - 2(2) \\ 4 = - 4$

4 is not equal to -4.

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