Como resolver a equação -7. (x-3)=x +5

Step-by-step explanation:

Distribute the into :

Subtract from both sides of the equation:

Subtract from both sides of the equation:

Divide both sides of the equation by the coefficient of , which is :

_

Check your work by substituting into the initial equation:

The answer is correct!

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step-by-step explanation:

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function