What are the solutions to the equation 18+2x^2=2(9*5) ?

The solutions to the equation 18+2x^2=2(9*5) are x=6,x=-6

Find the zeros of 18+2x^2=2(9*5)

The zeros of 18+2x^2=2(9*5) are x=6,x=-6

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18 + 2 x^{2} = 2 (9 \cdot 5)

x = 6, x = - 6

Solution steps

18 + 2 x^{2} = 2 (9 \cdot 5)

Expand

2 (9 \cdot 5) : 90

18 + 2 x^{2} = 90

Move

18

to the right side

2 x^{2} = 72

Divide both sides by

2

x^{2} = 36

For

x^{2} = f (a)

the solutions are

x = f (a), - f (a)

x = 36, x = - 36

36 = 6

- 36 = - 6

x = 6, x = - 6

(3 x + 7)^{2} = 36

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

(x - 1)^{2} + (x - 8)^{2} = x^{2}

3 x^{2} - 26 x + 2 = 0

x^{2} - 14 x + 16 = - 8

What are the solutions to the equation 18+2x^2=2(9*5) ?
The solutions to the equation 18+2x^2=2(9*5) are x=6,x=-6
Find the zeros of 18+2x^2=2(9*5)
The zeros of 18+2x^2=2(9*5) are x=6,x=-6