en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (x+3)(x+4=0)

Solution

expand

(x + 3) (x + 4 = 0)

Solution

x^{2} + 4 x = 0

Solution steps

(x + 3) (x + 4 = 0)

= (x + 3) (x + 4 \cdot 0 =)

Apply FOIL method:

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

a = x, b = 3, c = x, d = 4 = 0

xx + x \cdot 4 = 0 + 3 x + 3 \cdot 4 = 0

xx + 4 x = 0 + 3 x + 3 \cdot 4 = 0

Expand

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

x^{2} + 4 x = 0

Popular Examples

expand 9/((3x-1)(3x+5))expand

\frac{9}{( 3 x - 1 ) ( 3 x + 5 )}

expand ln(x)(6x+1)expand

ln (x) (6 x + 1)

expand (b(1+1.1r))/(1-1.1r)expand

\frac{b ( 1 + 1.1 r )}{1 - 1.1 r}

((s^2+4))/(s(s^2+16))

\frac{( s ^{2} + 4 )}{s ( s ^{2} + 16 )}

expand ((21x-9)(15x+3))/7 expand

\frac{( 21 x - 9 ) ( 15 x + 3 )}{7}

Frequently Asked Questions (FAQ)

What is expand (x+3)(x+4=0) ?
The solution to expand (x+3)(x+4=0) is x^2+4x=0