What is expand ((10x-7)(10x+7))/4 ?

The solution to expand ((10x-7)(10x+7))/4 is 25x^2-49/4

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand ((10x-7)(10x+7))/4

expand

\frac{( 10 x - 7 ) ( 10 x + 7 )}{4}

25 x^{2} - \frac{49}{4}

Solution steps

\frac{( 10 x - 7 ) ( 10 x + 7 )}{4}

Expand

(10 x - 7) (10 x + 7) : 100 x^{2} - 49

= \frac{100 x ^{2} - 49}{4}

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{100 x ^{2} - 49}{4} = \frac{100 x ^{2}}{4} - \frac{49}{4}

= \frac{100 x ^{2}}{4} - \frac{49}{4}

Divide the numbers:

\frac{100}{4} = 25

= 25 x^{2} - \frac{49}{4}

- 1^{3} - 5 \cdot (- 1) + 1

\frac{s}{( s + 0.1 ) ( s + x )}

(x + 1)^{2} \cdot ln (x + 1)

(1.5)^{3}

\frac{3 ( x + 1 )}{2}

What is expand ((10x-7)(10x+7))/4 ?
The solution to expand ((10x-7)(10x+7))/4 is 25x^2-49/4