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Simplify 3(3x–2)+x(4x2)+15–12. 3(3x – 2) + x(\frac{4x}{2}) + 15 – 12.3(3x–2)+x(24x​)+15–12.​​
Question

Simplify 3(3x2)+x(4x2)+1512. 3(3x – 2) + x(\frac{4x}{2}) + 15 – 12.​​

A.

2x2+6x92x^2+ 6x –9​​

B.

2x2+9x+32x^2 + 9x + 3​​

C.

2x2+9x+62x^2 + 9x + 6​​

D.

2x2+9x32x^2+ 9x – 3​​

Correct option is D

Given:

3(3x2)+x(4x2)+1512.3(3x – 2) + x(\frac{4x}{2}) + 15 – 12. ​ 

Solution:  

​​​3(3x2)+x(4x2)+1512. 6x12+2x2+32x2+6x33(3x – 2) + x(\frac{4x}{2}) + 15 – 12. ​\\\ \\6x - 12 +2x^2 + 3 \\2x^2 + 6x - 3

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