What are the solutions to the equation x^2-10x=-21 ?

The solutions to the equation x^2-10x=-21 are x=7,x=3

Find the zeros of x^2-10x=-21

The zeros of x^2-10x=-21 are x=7,x=3

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

x^{2} - 10 x = - 21

x = 7, x = 3

Solution steps

x^{2} - 10 x = - 21

Move

21

to the left side

x^{2} - 10 x + 21 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 10 ) \pm ( - 10 ) ^{2} - 4 \cdot 1 \cdot 21}{2 \cdot 1}

(- 10)^{2} - 4 \cdot 1 \cdot 21 = 4

x_{1, 2} = \frac{- ( - 10 ) \pm 4}{2 \cdot 1}

Separate the solutions

x_{1} = \frac{- ( - 10 ) + 4}{2 \cdot 1}, x_{2} = \frac{- ( - 10 ) - 4}{2 \cdot 1}

x = \frac{- ( - 10 ) + 4}{2 \cdot 1} : 7

x = \frac{- ( - 10 ) - 4}{2 \cdot 1} : 3

The solutions to the quadratic equation are:

x = 7, x = 3

2 x - \frac{1}{3} \leq 8

\frac{( \frac{4}{9} ) ^{- 2}}{( \frac{27}{8} ) ^{- 3}}

lo g_{\frac{1}{4}} (5)

\frac{75}{48}

ln (9)

What are the solutions to the equation x^2-10x=-21 ?
The solutions to the equation x^2-10x=-21 are x=7,x=3
Find the zeros of x^2-10x=-21
The zeros of x^2-10x=-21 are x=7,x=3