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

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

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

The zeros of (x^2-10x+21)=0 are x=3,x=7

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

x = 3, x = 7

Solution steps

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

Factor

x^{2} - 10 x + 21 : (x - 3) (x - 7)

(x - 3) (x - 7) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x - 3 = 0 or x - 7 = 0

Solve

x - 3 = 0 : x = 3

Solve

x - 7 = 0 : x = 7

The solutions to the quadratic equation are:

x = 3, x = 7

0 = x^{2} - 3 x - 2

0 = x^{2} - 3 x - 5

x, x^{2} + 2 y x + 1 = 0

x^{2} + 18 x = - 17

8 x^{2} - 1 - x = - x + 5

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