en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (5a-7b)^2

Solution

expand

(5 a - 7 b)^{2}

Solution

25 a^{2} - 70 ab + 49 b^{2}

Solution steps

(5 a - 7 b)^{2}

Apply Perfect Square Formula:

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

(5 a - 7 b)^{2} = (5 a)^{2} - 2 \cdot 5 a \cdot 7 b + (7 b)^{2}

= (5 a)^{2} - 2 \cdot 5 a \cdot 7 b + (7 b)^{2}

Simplify

(5 a)^{2} - 2 \cdot 5 a \cdot 7 b + (7 b)^{2} : 25 a^{2} - 70 ab + 49 b^{2}

= 25 a^{2} - 70 ab + 49 b^{2}

Popular Examples

simplify log_{10}(0.02)simplify

lo g_{10} (0.02)

expand (x-1)(x-6)expand

(x - 1) (x - 6)

simplify log_{5}(20)+log_{5}(2)-log_{5}(8)simplify

lo g_{5} (20) + lo g_{5} (2) - lo g_{5} (8)

simplify sqrt(0.99)simplify

0.99

simplify 16^{-1}simplify

1 6^{- 1}

Frequently Asked Questions (FAQ)

What is expand (5a-7b)^2 ?
The solution to expand (5a-7b)^2 is 25a^2-70ab+49b^2