Solve f(x)=2x^2-1text{at}x=3 | Microsoft Math Solver

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Solve for f, x

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f\times 3=2\times 3^{2}-1

Consider the first equation. Insert the known values of variables into the equation.

f\times 3=2\times 9-1

Calculate 3 to the power of 2 and get 9.

f\times 3=18-1

Multiply 2 and 9 to get 18.

f\times 3=17

Subtract 1 from 18 to get 17.

f=\frac{17}{3}

Divide both sides by 3.

f=\frac{17}{3} x=3

The system is now solved.

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