What is the answer to -4y+2sqrt(20-y^2)+25=13 ?

The answer to -4y+2sqrt(20-y^2)+25=13 is y=4

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-4y+2sqrt(20-y^2)+25=13

- 4 y + 2 20 - y^{2} + 25 = 13

y = 4

Solution steps

- 4 y + 2 20 - y^{2} + 25 = 13

Remove square roots

80 - 4 y^{2} = 16 y^{2} - 96 y + 144

Solve

80 - 4 y^{2} = 16 y^{2} - 96 y + 144 : y = 4, y = \frac{4}{5}

y = 4, y = \frac{4}{5}

Verify Solutions:

y = 4

True

, y = \frac{4}{5}

False

The solution is

y = 4

t - 2 + t = 4

36 x - 99 = 21 2 x - 29

x - 17 x + 66 = 0

5 x - 2 = 1

5 x - 2 = 3

What is the answer to -4y+2sqrt(20-y^2)+25=13 ?
The answer to -4y+2sqrt(20-y^2)+25=13 is y=4
Solve for y: -4y+2sqrt(20-y^2)+25=13
The solution is y=4