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If m:n = 13:111, find m2 - n2 : (m + n)2
Question 1
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If m:n = 13:111, find m
2
- n
2
: (m + n)
2
1:11
1:13
1:10
1:12
Answer Details
m : n = 13 : 11
m
2
- n
2
= (m - n)
2
= 13
2
- 11
2
: (13 + 11)
2
= 169 - 121 : 24
2
= 48 : 576
= 1 : 12
Read lesson note on Algebraic Expressions (WAEC)
Algebraic Expressions
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