What is simplify-3{4x(x+2)-2[x^2-(3-x)]} ?

The solution to simplify-3{4x(x+2)-2[x^2-(3-x)]} is -6x^2-18x-18

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simplify-3{4x(x+2)-2[x^2-(3-x)]}

simplify

- 3 {4 x (x + 2) - 2 [x^{2} - (3 - x)]}

- 6 x^{2} - 18 x - 18

Solution steps

- 3 (4 x (x + 2) - 2 (x^{2} - (3 - x)))

Simplify

4 x (x + 2) - 2 (x^{2} - (3 - x)) : 2 x^{2} + 6 x + 6

= - 3 (2 x^{2} + 6 x + 6)

Expand

- 3 (2 x^{2} + 6 x + 6) : - 6 x^{2} - 18 x - 18

= - 6 x^{2} - 18 x - 18

sin^{2} (a) - cos^{2} (a)

2 \cdot 9.8 \cdot 3

(3 x + 2)^{6}

(m + n + 1) (m + n - 1)

4 i (6 i)

What is simplify-3{4x(x+2)-2[x^2-(3-x)]} ?
The solution to simplify-3{4x(x+2)-2[x^2-(3-x)]} is -6x^2-18x-18