Posted by Nithin on Tuesday, September 2, 2014 at 3:20pm.
(please give brief explanation to this sentence > two squares have sides p cm and (p+5) cms)
two squares have sides p cm and (p+5) cms. the sum of theirs squares is 625 sq.cm. the sides of the squares are

math  Steve, Tuesday, September 2, 2014 at 3:36pm
what's to explain? Write the facts in symbols:
p^2 + (p+5)^2 = 625
Now just solve for p and find p+5

math  MathMate, Tuesday, September 2, 2014 at 3:38pm
Sum of squares
= p²+(p+5)²
=625
Expand
p²+p²+10p+25=625
2p²+10p=600
p²+5p300=0
(p15)(p+20)=0
p=15 or p=20, reject negative root
The sides of the squares are therefore:
p=15
p+5=15+5=20
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