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Popular >

expand (7m-8)^2

Solution

expand

(7 m - 8)^{2}

Solution

49 m^{2} - 112 m + 64

Solution steps

(7 m - 8)^{2}

Apply Perfect Square Formula:

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

(7 m - 8)^{2} = (7 m)^{2} - 2 \cdot 7 m \cdot 8 + 8^{2}

= (7 m)^{2} - 2 \cdot 7 m \cdot 8 + 8^{2}

Simplify

(7 m)^{2} - 2 \cdot 7 m \cdot 8 + 8^{2} : 49 m^{2} - 112 m + 64

= 49 m^{2} - 112 m + 64

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Frequently Asked Questions (FAQ)

What is expand (7m-8)^2 ?
The solution to expand (7m-8)^2 is 49m^2-112m+64