Question

Sederhanakan bentuk aljabar berikut :
A) 5x(4x-3y) - 3x(5x+2y) =
B) a(a+3b)+2a(4a+5b) =

Answer 1

A.
5x ( 4x - 3y) - 3x ( 5x + 2y)
= 20x² - 15xy - 15x² - 6xy
= 20x² - 15x² - 15xy - 6xy
= 5x² - 21xy

B.
a(a + 3b) + 2a(4a + 5b)
= a² + 3ab + 8a² + 10ab
= a² + 8a² + 3ab + 10ab
= 9a² + 13ab

semogamembantu♣

Answer 2

A. 20x^2 -15xy -15x^2 -6xy
= 20x^2 -15x^2 -15xy -6xy
= 5x^2 -21xy
B. a^2 +3ab +8a^2 +10ab
= a^2 +8a^2 +3ab +10ab
= 9a^2 +13ab