Question

(x+2y)(4x-3y)= (1,7a-3,1)(2,4a+0,6)=

Answer 1

Ответ:

ответ и решение на фотографии

Answer 2

(x+2y)(4x-3y) = 4x^2 - 6xy + 8xy - 12y^2 = 4x^2 + 2xy - 12y^2

(1.7a-3.1)(2.4a+0.6) = 4.08a^2 + 1.02a - 7.74a - 1.86 = 4.08a^2 - 6.72a - 1.86