how to do question 8and9 second question step by step
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please mark as brainliest answer
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8.(ii)
(307)²=(300+7)²
=>(300)²+(2*300*7)+(7)²
=>90000+4200+49
=>94,249
9.(ii)
(192)²=(200-8)²
=>(200)²+(8)²-(2*200*8)
=>40000+64-3200
=>36,864
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