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Popular >

expand (y=x^2+2x)(x+2)

Solution

expand

(y = x^{2} + 2 x) (x + 2)

Solution

y = 4 x^{2} + 4 x

Solution steps

(y = x^{2} + 2 x) (x + 2)

= (= x^{2} y + 2 x) (x + 2)

Apply FOIL method:

(a + b) (c + d) = a c + a d + b c + b d

a = y = x^{2}, b = 2 x, c = x, d = 2

y = x^{2} x + y = x^{2} \cdot 2 + 2 xx + 2 x \cdot 2

y = x^{2} x + y = 2 x^{2} + 2 xx + 2 \cdot 2 x

Expand

2 x^{2} + 2 xx + 2 \cdot 2 x : 4 x^{2} + 4 x

y = 4 x^{2} + 4 x

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Frequently Asked Questions (FAQ)

What is expand (y=x^2+2x)(x+2) ?
The solution to expand (y=x^2+2x)(x+2) is y=4x^2+4x