Question

solve this to become brainlist

Answer 1

(5)

Given : (7x + 2y) * (x + 4y)

= > (7x) * (x) + (7x) * (4y) + (2y) * (x) + (2y) * (4y)

= > 7x^2 + 28xy + 2xy + 8y^2

= > 7x^2 + 30xy + 8y^2.

Hope it helps!

Answer 2

(7x+2y) ×(x+4y)
= 7x(x+4y) + 2y(x+4y)
= 7x^2 + 28xy + 2xy +8y^2
= 7x^2 + 30xy + 8y^2