Question

6. Use suitable identities to find the following products:

(i) 105 x 106 (ii) 104

3
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Answer 1

Step-by-step explanation:

105 × 106

= (100 + 5) × (100 + 6)

using the identity:

(x + a) (x + b) = x^2 + (a+b)x + ab; we get

×=100, a=5, b=6

= (100)^2 + (5+6)(100) + (5×6)

= 10000 + 1100 + 30

= 11130