If a number is increased by 4, its square is increased by 64. Find the number
2 answers:
Answer:
12
Step-by-step explanation:
12 - 4 = 8
The square of 8 is 64
Answer:
6
Step-by-step explanation:
(n + 4)^2 = n^2 + 64
n^2 + 8n + 16 = n^2 + 64
8n = 48
n = 6
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Answer:
A shopkeeper marks:
$200 * 1.4 = $280
Step-by-step explanation:
With a discount of 25%:
$280 * 0.75 = $210
Pretty sure its 183. correct me if im wrong tho
Answer:
zero
Step-by-step explanation:
5x+10 = 5x-8
5x-5x = -8-10
0 = -18
so zero
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