Simplify.
-$5 \cdot ( 5 + 4 ) ^ { 2 } - 2 \cdot ( 6 - 3 ) ^ { 2 }$
A) 387
B) 823
C) 3627
D) 1989

Name: Simplify. -$5 \cdot ( 5 + 4 ) ^ { 2 } - 2 \cdot ( 6 - 3 ) ^ { 2 }$ A) 387 B) 823 C) 3627 D) 1989
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Question

Quizplus · Accepted Answer

First, simplify the parentheses:
$5 \cdot ( 5 + 4 ) ^ { 2 } - 2 \cdot ( 6 - 3 ) ^ { 2 }$
$5 \cdot 9^2 - 2 \cdot 3^2$
Then, perform the multiplication and subtraction:
$405 - 18$
$387$

Simplify - 5⋅(5+4)2−2⋅(6−3)25 \cdot ( 5 + 4 ) ^ { 2 } - 2 \cdot ( 6 - 3 ) ^ { 2 }5⋅(5+4)2−2⋅(6−3)2

Simplify
- $5 \cdot ( 5 + 4 ) ^ { 2 } - 2 \cdot ( 6 - 3 ) ^ { 2 }$