Question

Simplify: 7 raise to the power a - b

Answer 1

Answer:

$a^{7}-7a^{6}b+21a^{5}b^{2}-35a^{4}b^{3}+35a^{3}b^{4}-21a^{2}b^{5}+7ab^{6} -b^{7}$

Step-by-step explanation:

$(a-b)^{7}$

(1).$a^{7}$.$(-b)^{0}$+7$a^{6}.(-b)$+......$a^{0}.(-b)^{7}$

simply the polynomial result,

$a^{7}-7a^{6}b+21a^{5}b^{2}-35a^{4}b^{3}+35a^{3}b^{4}-21a^{2}b^{5}+7ab^{6} -b^{7}$