Answer
27
Work Step by Step
Given 2$x^{2}$ - 5x -6, x=-3
Step 1: Put the value of x=-3 for each x in the expression
=2$(-3)^{2}$ - 5(-3) -6
Step 2: Evaluate the exponential expression$(-3)^{2}$ = (-3)(-3) = 9
=2( 9)-5(-3)-6
Step 3: Multiply 2(9) = 18 and 5(-3)= -15
=18 +15-6
Step 4: Add and Subtract from left to right
first add 18+15 = 33
33-6
subtract
27
