What are the solutions to the equation X^2-7X=18 ?

The solutions to the equation X^2-7X=18 are X=9,X=-2

Find the zeros of X^2-7X=18

The zeros of X^2-7X=18 are X=9,X=-2

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X^{2} - 7 X = 18

X = 9, X = - 2

Solution steps

X^{2} - 7 X = 18

Move

18

to the left side

X^{2} - 7 X - 18 = 0

Solve with the quadratic formula

X_{1, 2} = \frac{- ( - 7 ) \pm ( - 7 ) ^{2} - 4 \cdot 1 \cdot ( - 18 )}{2 \cdot 1}

(- 7)^{2} - 4 \cdot 1 \cdot (- 18) = 11

X_{1, 2} = \frac{- ( - 7 ) \pm 11}{2 \cdot 1}

Separate the solutions

X_{1} = \frac{- ( - 7 ) + 11}{2 \cdot 1}, X_{2} = \frac{- ( - 7 ) - 11}{2 \cdot 1}

X = \frac{- ( - 7 ) + 11}{2 \cdot 1} : 9

X = \frac{- ( - 7 ) - 11}{2 \cdot 1} : - 2

The solutions to the quadratic equation are:

X = 9, X = - 2

13 - x^{2} = - 10

20 - x^{2} = 10

(x + 10)^{2} = 49

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

x, x^{2} + x y + y^{3} = 1

What are the solutions to the equation X^2-7X=18 ?
The solutions to the equation X^2-7X=18 are X=9,X=-2
Find the zeros of X^2-7X=18
The zeros of X^2-7X=18 are X=9,X=-2