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Evaluate (18)^2-(15)^2. Please show working
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5 votes
Evaluate (18)^2-(15)^2.
Please show working

User Marcelus Trojahn
by
4.0k points

2 Answers

3 votes
18^2-15^2
=324-225
99
User JC Brand
by
4.2k points
1 vote

• Answer:

99

• Step-by-step explanation:

Hi there !

use formula a² - b² = (a-b)(a+b)

18² - 15² =

= (18 - 15)(18 + 15)

= 3×33

= 99

Good luck !

User Neda
by
4.9k points
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