. Using (x + a)(x + b) = x² + (a + b)x + ab, find the value of 102 x 104.
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= (100+2) (100+4)
= (100)^2 + (2+4) x 100 + 2x4
= 10000+600+8
= 10608 is your answer
= (100)^2 + (2+4) x 100 + 2x4
= 10000+600+8
= 10608 is your answer
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