What is 3x^2+5[4x^2-6(3x+1)] ?

The solution to 3x^2+5[4x^2-6(3x+1)] is 23x^2-90x-30

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simplify 3x^2+5[4x^2-6(3x+1)]

simplify

3 x^{2} + 5 [4 x^{2} - 6 (3 x + 1)]

23 x^{2} - 90 x - 30

Solution steps

3 x^{2} + 5 (4 x^{2} - 6 (3 x + 1))

Expand

5 (4 x^{2} - 6 (3 x + 1)) : 20 x^{2} - 90 x - 30

= 3 x^{2} + 20 x^{2} - 90 x - 30

Add similar elements:

3 x^{2} + 20 x^{2} = 23 x^{2}

= 23 x^{2} - 90 x - 30

y + 2 y

(4 \cdot 1 0^{- 5})^{3}

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

4 x^{3} - 19 x^{2} + 21 x

(\frac{- 2}{2})^{2}

What is 3x^2+5[4x^2-6(3x+1)] ?
The solution to 3x^2+5[4x^2-6(3x+1)] is 23x^2-90x-30