Question

(43)²,Find the value using expansion formulae of (a+b)² or (a-b)².

Answer 1

Here i am using (a+b)² formula

(43)²= (40+3)²
= (1600 + 9+ 240)
= 1849

please mark it brainliest

Answer 2

BONJOUR,
❤ ❤ ❤ ❤
we can write this like (40+3)^2
$(40 + 3) {}^{2} \\ = 40 {}^{2} + 2 \times 40 \times 3 + 3 {}^{2} \\ = 1600 + 240 + 9 \\ = 1849$