Question

(310)^2 using (a+b)^2=(a^2-2ab+b^2​

Answer 1

Step-by-step explanation:

(310)²

= (300+10)²

= 300² + 10² + 2.300.10

= 90000 + 100 + 6000

= 96100

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Answer 2

Answer:

96100

Step-by-step explanation:

$= > 310 \: \: \: \: \: \: we \: can \: write \: as \: 300 + 10 \\ \\ so \: \: we \: have \\ \\ = > {(300 + 10)}^{2} \\ \\ = > {300}^{2} + {10}^{2} +2 \times 300 \times 10 \\ \\ = > 90000 + 100 + 6000 \\ \\ = > 96100$

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