Simplify the following: 3 x^2+2(x+2)-3 x(2 x+1) - Vidyadip

Question

Simplify the following:
$3 x^2+2(x+2)-3 x(2 x+1)$

✓

Answer

$3 x^2+2(x+2)-3 x(2 x+1)$
$=3 x^2+2 \times x+2 \times 2-3 x \times 2 x-3 x$
$=3 x^2+2 x+4-6 x^2-3 x$
$=-3 x^2-x+4$

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