What are the solutions to the equation completesquare x^2+4x-7 ?

The solutions to the equation completesquare x^2+4x-7 are (x+2)^2-11

Find the zeros of completesquare x^2+4x-7

The zeros of completesquare x^2+4x-7 are (x+2)^2-11

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

complete the square

x^{2} + 4 x - 7

(x + 2)^{2} - 11

Solution steps

x^{2} + 4 x - 7

Write

x^{2} + 4 x - 7

in the form:

x^{2} + 2 a x + a^{2}

2 a = 4 : a = 2

Add and subtract

2^{2}

x^{2} + 4 x - 7 + 2^{2} - 2^{2}

x^{2} + 2 a x + a^{2} = (x + a)^{2}

x^{2} + 4 x + 2^{2} = (x + 2)^{2}

(x + 2)^{2} - 7 - 2^{2}

Simplify

(x + 2)^{2} - 11

24 = x^{2} - 4 x + 3

x, x^{2} y^{2} - x y + x = 1

r, v = \frac{1}{3} (π r^{2}) h

2 x^{2} + 16 x + 14 = 0

5 (x + 10)^{2} - 30 = - 5

What are the solutions to the equation completesquare x^2+4x-7 ?
The solutions to the equation completesquare x^2+4x-7 are (x+2)^2-11
Find the zeros of completesquare x^2+4x-7
The zeros of completesquare x^2+4x-7 are (x+2)^2-11