What is the answer to -xsqrt(x+12)=x+3 ?

The answer to -xsqrt(x+12)=x+3 is x\approx-0.68753…

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-xsqrt(x+12)=x+3

- x x + 12 = x + 3

x \approx - 0.68753 \dots

Solution steps

- x x + 12 = x + 3

Square both sides:

x^{3} + 12 x^{2} = x^{2} + 6 x + 9

x^{3} + 12 x^{2} = x^{2} + 6 x + 9

Solve

x^{3} + 12 x^{2} = x^{2} + 6 x + 9 : x \approx - 0.68753 \dots, x \approx 1.14273 \dots, x \approx - 11.45519 \dots

x \approx - 0.68753 \dots, x \approx 1.14273 \dots, x \approx - 11.45519 \dots

Verify Solutions:

x \approx - 0.68753 \dots

True

, x \approx 1.14273 \dots

False

, x \approx - 11.45519 \dots

False

The solution is

x \approx - 0.68753 \dots

3 x - 1 - x + 2 = 1

x - 4 = 7 x - 34

2 x - 3 = x - 1

2 x - 3 = x - 5

w, w + 8 = 5

What is the answer to -xsqrt(x+12)=x+3 ?
The answer to -xsqrt(x+12)=x+3 is x\approx-0.68753…
Solve for x: -xsqrt(x+12)=x+3
The solution is x\approx-0.68753…