Question

(a+4)в квадрате минус (b+2) в квадрате=

Answer 1

(a+4)^2-(b+2) ^2= a^2+8a+16- (b^2+4b+4)= a^2 +8a+16-b^2-4b-4 =a^2+8a+12 -b^2-4b

Answer 2

$(a+4)^{2} -(b+2)^{2} = \ =a ^{2} +16+8a-b ^{2} -4-4b= \ =a^{2} +8a+12-b^{2} -4b$