3x^2 + 2x - 6 if x = -2
=3(-2)^2 + 2(-2) - 6
=12 - 4 - 6
= 2
5x^2 + 6x - 2 if x = -2
=5(-2)^2 + 6(-2) - 2
=20 - 12 - 2
= 6
-2x^3 + 2x^2 if x = 2
= -2(2)^3 + 2(2)^2
= -16 + 8
= -8
Answer:
2.3
Step-by-step explanation:
To convert a fraction to a decimal you must divide the numerator by the denominator. By doing so, you receive the decimal of 2.3
Answer:
-28
Step-by-step explanation:
-4(7)=-28
