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Popular >

expand 3(x+4)(x-5)

Solution

expand

3 (x + 4) (x - 5)

Solution

3 x^{2} - 3 x - 60

Solution steps

3 (x + 4) (x - 5)

Expand

3 (x + 4) (x - 5) : 3 (x^{2} - x - 20)

= 3 (x^{2} - x - 20)

Apply the distributive law:

m (a + b + c) = ma + mb + m c

3 (x^{2} - x - 20) = 3 x^{2} + 3 (- x) + 3 (- 20)

= 3 x^{2} + 3 (- x) + 3 (- 20)

Simplify

3 x^{2} + 3 (- x) + 3 (- 20) : 3 x^{2} - 3 x - 60

= 3 x^{2} - 3 x - 60

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Frequently Asked Questions (FAQ)

What is expand 3(x+4)(x-5) ?
The solution to expand 3(x+4)(x-5) is 3x^2-3x-60