What are the solutions to the equation -x^2-10x-21=0 ?

The solutions to the equation -x^2-10x-21=0 are x=-7,x=-3

Find the zeros of -x^2-10x-21=0

The zeros of -x^2-10x-21=0 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 = 0

x = - 7, x = - 3

Solution steps

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

Solve with the quadratic formula

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

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

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

Separate the solutions

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

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

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

The solutions to the quadratic equation are:

x = - 7, x = - 3

4 x^{2} - 64

18 x + 15 \leq 3 (5 x - 3)

\frac{1 + i}{i} - \frac{4}{5 - i}

\frac{5 ( x - 4 )}{2} \geq \frac{2 x}{7} - 15

- 4 x^{2} + 12 x - 9 = 0 x

What are the solutions to the equation -x^2-10x-21=0 ?
The solutions to the equation -x^2-10x-21=0 are x=-7,x=-3
Find the zeros of -x^2-10x-21=0
The zeros of -x^2-10x-21=0 are x=-7,x=-3