What is expand x^2-3(x+5) ?

The solution to expand x^2-3(x+5) is x^2-3x-15

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expand x^2-3(x+5)

expand

x^{2} - 3 (x + 5)

x^{2} - 3 x - 15

Solution steps

x^{2} - 3 (x + 5)

Apply the distributive law:

a (b + c) = ab + a c

- 3 (x + 5) = - 3 x - 3 \cdot 5

= x^{2} - 3 x - 3 \cdot 5

Multiply the numbers:

3 \cdot 5 = 15

= x^{2} - 3 x - 15

25 \cdot 1 0^{- 6}

(- 5 - 4 i)^{2}

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2^{- 4} + 4^{- 1}

- (12 - 4 x) + 8 (10 - x)