Question

Evaluate using identities:184×185-115×115

Answer 1

(100-16)(100-15)-(100-15)(100-15)
(a+x) (a-x)
$a {}^{2} + (a + b) \times x + ab$
$100 {}^{2} + ( - 16 - 15)100 + - 15 \times - 16 \: \: - (100 - 15) {}^{2}$
$(a + b) {}^{2}$