-3(x - 4) + x(2x + 3)

Mathematics

2 answers:

PolarNik [594]3 years ago

8 0

Step-by-step explanation:

-3(x - 4) + x(2x + 3)

= (-3x + 12) + (2x² + 3x)

= 2x² + 12

= 2(x² + 6).

OLga [1]3 years ago

5 0

Answer:

$- 3(x - 4) + x (2x + 3) \\ = - 3x + 12 + 2 {x}^{2} + 3x \\ = 2 {x}^{2} + 12 \\ = 2( {x}^{2} + 6)$

2(x^2+6) is the right answer.

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