Evaluate each expression for the given value of the variable.
2x2 for x =3
Is that 2x squared?
We write that as 2x^2
yes ma'am.
is is 2x3=6^2 = 36
To evaluate the expression 2x^2 for x = 3, we substitute the value of x into the expression and simplify.
Step 1: Substitute x = 3 into the expression.
2(3)^2
Step 2: Simplify the expression.
2(9)
Step 3: Multiply.
18
Therefore, when x = 3, the expression 2x^2 is equal to 18.
To evaluate the expression 2x^2 for x = 3, you need to substitute the value of x into the expression and calculate the result.
Step 1: Replace x with the given value of 3 in the expression 2x^2.
2(3)^2
Step 2: Simplify the expression by calculating the exponent first.
2(9)
Step 3: Evaluate the multiplication operation.
18
Therefore, when x = 3, the value of the expression 2x^2 is 18.