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Popular >

expand 3(x+4)(x+7)

Solution

expand

3 (x + 4) (x + 7)

Solution

3 x^{2} + 33 x + 84

Solution steps

3 (x + 4) (x + 7)

Expand

3 (x + 4) (x + 7) : 3 (x^{2} + 11 x + 28)

= 3 (x^{2} + 11 x + 28)

Apply the distributive law:

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

3 (x^{2} + 11 x + 28) = 3 x^{2} + 3 \cdot 11 x + 3 \cdot 28

= 3 x^{2} + 3 \cdot 11 x + 3 \cdot 28

Simplify

3 x^{2} + 3 \cdot 11 x + 3 \cdot 28 : 3 x^{2} + 33 x + 84

= 3 x^{2} + 33 x + 84

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Frequently Asked Questions (FAQ)

What is expand 3(x+4)(x+7) ?
The solution to expand 3(x+4)(x+7) is 3x^2+33x+84