Evaluate 1732 –
1632
Solution
We use difference of
two squares;
a2 – b2
= (a – b)(a + b)
1732 –
1632 = (173 + 163)(173 – 163)
= (336)( 10)
= 3360
1732 –
1632 = 3360
TRY THIS…………….
Evaluate 3132 –
3032
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