Question

(X+b) (x+b)=x square +(a+b)x+ab find 305 multiply303 using this identity

Answer 1

Hi friend
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Your answer
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EVALUATING BY USING IDENTITIES
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303 × 305

= (300 + 3) (300 +5)

= (300)² + (3+5)300 + 3×5

= 90000 + 300×8 + 15

= 90000 + 2400 + 15

= 92415

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