How do you simplify $(8 x^{3} + 5 x) - 3 (x^{3} + 2)$ $(8x^3 + 5x) - 3(x^3 + 2)$ ?

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Answer 1 · 2018-03-03T05:22:42

$5 x^{3} + 5 x - 6$ $5x^3+5x-6$

First, expand the second bracket:

$(8 x^{3} + 5 x) - 3 \cdot x^{3} - 3 \cdot 2$ $(8x^3 +5x)-3*x^3-3*2$

$(8 x^{3} + 5 x) - 3 x^{3} - 6$ $(8x^3 +5x)-3x^3-6$

Then collect "like" terms :

$8 x^{3} - 3 x^{3} + 5 x - 6$ $8x^3-3x^3+5x-6$

$5 x^{3} + 5 x - 6$ $color(red)(5x^3+5x-6)$

How do you simplify (8x^3 + 5x) - 3(x^3 + 2)(8x3+5x)−3(x3+2)(8x^3 + 5x) - 3(x^3 + 2)?