Evaluate the algebraic expression for the given value of the variable.
-4,x^2-18= -10
Please check my answer
add 18 to both sides, take the square root to each side to find x
add 18 to both sides, take the square root to each side to find x.
Please show me how.
Please show me how this is my first time learning algebra.
It says to evaluate.
Therefore, just put the -4 in for the x^2 and simplify.
(-4)^2 - 18 simplifies 16 -18 simplifies to -2
If this is an expression there should not be an = sign. I am assuming the -10 wouldn't be there.
To evaluate the algebraic expression, we need to substitute the given value of the variable into the expression and solve for the equation.
Given expression: -4(x^2 - 18) = -10
Substituting x = -10 into the expression, we have: -4((-10)^2 - 18) = -10
Next, we simplify the expression inside the brackets:
-4((100) - 18) = -10
-4(82) = -10
-328 = -10
So, by substituting x = -10 into the expression, we get -328 = -10.
Therefore, the answer is not correct. The correct answer would be -328 = -10.