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Popular >

expand (2y-4)^2

Solution

expand

(2 y - 4)^{2}

Solution

4 y^{2} - 16 y + 16

Solution steps

(2 y - 4)^{2}

Apply Perfect Square Formula:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

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

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

Simplify

(2 y)^{2} - 2 \cdot 2 y \cdot 4 + 4^{2} : 4 y^{2} - 16 y + 16

= 4 y^{2} - 16 y + 16

Popular Examples

simplify (x-4)/(x^2-x-12)simplify

\frac{x - 4}{x ^{2} - x - 12}

factor-4x^2-42x+22 factor

- 4 x^{2} - 42 x + 22

factor 9-12x+4x^2 factor

9 - 12 x + 4 x^{2}

simplify 34/12*3/2*16/51*1/6 simplify

\frac{34}{12} \cdot \frac{3}{2} \cdot \frac{16}{51} \cdot \frac{1}{6}

simplify (2ab-2b^2)/(a^2b-b^3)simplify

\frac{2 ab - 2 b ^{2}}{a ^{2} b - b ^{3}}

Frequently Asked Questions (FAQ)

What is expand (2y-4)^2 ?
The solution to expand (2y-4)^2 is 4y^2-16y+16