If d(x)=−x2+4x−9,find d(s−2). enter the expression in simplest form. the terms of the expression must be entered in descending order of degree. d(s−2)=

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

What is the value of x in the following equation? -3x-2=2x+8

Which expression gives you the distance between the points (5,1)and(9,-6)