evaluate the following products with out multiplying directly
(1) 103 x 107
(2) 95 x 96
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(1) I03 X 107
(100+3) (100+7) {(x+a) (x+b) = x² + (a+b)x + ab}
(100)² + (3+7)100 + 3 X 7
10000 + 1000 + 21
11021
(2) 95 X 96
(100-5) (100-4) {same identity as above}
(100)² + (-5-4)100 + (-5 X -4)
10000 - 900 + 20
9120
(100+3) (100+7) {(x+a) (x+b) = x² + (a+b)x + ab}
(100)² + (3+7)100 + 3 X 7
10000 + 1000 + 21
11021
(2) 95 X 96
(100-5) (100-4) {same identity as above}
(100)² + (-5-4)100 + (-5 X -4)
10000 - 900 + 20
9120
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