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Popular >

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

Solution

expand

4 (a + 5) (a - 3)

Solution

4 a^{2} + 8 a - 60

Solution steps

4 (a + 5) (a - 3)

Expand

4 (a + 5) (a - 3) : 4 (a^{2} + 2 a - 15)

= 4 (a^{2} + 2 a - 15)

Apply the distributive law:

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

4 (a^{2} + 2 a - 15) = 4 a^{2} + 4 \cdot 2 a + 4 (- 15)

= 4 a^{2} + 4 \cdot 2 a + 4 (- 15)

Simplify

4 a^{2} + 4 \cdot 2 a + 4 (- 15) : 4 a^{2} + 8 a - 60

= 4 a^{2} + 8 a - 60

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Frequently Asked Questions (FAQ)

What is expand 4(a+5)(a-3) ?
The solution to expand 4(a+5)(a-3) is 4a^2+8a-60