Simplify the following:
3×(-3)^2-5 (-3-2)^2
-3-2 = -(3+2):
3×(-3)^2-5 -(3+2)^2
3+2 = 5:
3×(-3)^2-5 (-5)^2
Multiply each exponent in -5 by 2:
3×(-3)^2-5×(-1)^2×5^2
5^2 = 25:
3×(-3)^2-5×(-1)^2×25
(-1)^2 = 1:
3×(-3)^2-5×25
(-3)^2 = 9:
3×9-5×25
3×9 = 27:
27-5×25
-5×25 = -125:
27+-125
27-125 = -(125-27):
-(125-27)
Answer: |-98
DO the stuff in parentheses first then the exponents then the multiplication then the addition or subtraction.
3(-3)^2-5(-3-2)^2
=3(9) - 5(-5)^2
=27 - 5 (25)
=27-125
= -98