Solve n = (- 2); 5n ^ 2 + 5n - 2 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$n=(-2); 5n^{2}+5n-2$$

Solve for n, o

$o=8$

Solution Steps

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

$$o=5\left(-2\right)^{2}+5\left(-2\right)-2$$

Calculate $-2$ to the power of $2$ and get $4$.

$$o=5\times 4+5\left(-2\right)-2$$

Multiply $5$ and $4$ to get $20$.

$$o=20+5\left(-2\right)-2$$

Multiply $5$ and $-2$ to get $-10$.

$$o=20-10-2$$

Subtract $10$ from $20$ to get $10$.

$$o=10-2$$

Subtract $2$ from $10$ to get $8$.

$$o=8$$

The system is now solved.

$$n=-2$$ $$o=8$$