Question

using the identifies (a+b)²
i ) ( 70 + 1 ) ²
ii ) ( 100 + 2 ) ²​

Answer 1

Answer:

(i) 4900+1+140=5041

(ii)10000+4+400=10404

Step-by-step explanation:

Answer 2

Answer:

I) 5041

ii) 10404

Step-by-step explanation:

I)

$(a + b )^{2} = {a}^{2} + {b}^{2} + 2ab$

${70}^{2} + {1}^{2} + 2 \times 70 \times 1$

= 4900 + 1 + 140

= 5041

ii)

$(a + b )^{2} = {a}^{2} + {b}^{2} + 2ab$

$100^{2} + {2}^{2} +2 \times 100 \times 2$

10000 + 4 + 400

10404

I hope it is helpful.