Question

Find the squares of the following, using property of perfect squares :
(a) 7
(b) 8
(c) 12
(d) 13​

Answer 1

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Answer 2

Step-by-step explanation:

(a) 7

we use the indenties (a-b)²whole square

we take

(10-3) whole square

(a-b)² = a²-2ab+b²

10²-2(10)(3) +(3)²

100-60+9

40+9

49 -Ans

All question are done by the indenties