Question

Tolong yang jago matematika noner 4 bagian a,b,c.dengan caranya yang lengakap banget

Answer 1

Verified answer

4.a.
3x + 5y + 9x - 7y
= 3x + 9x + 5y - 7y
= 12x - 2y
= 2(6x - y)

4.b.
5x² - 30y + 18x² - y
= 5x² + 18x² - 30y - y
= 23x² - 31y

4.c.
4x + 12y + x - 9y + 14
= 4x + x + 12y - 9y + 14
= 5x + 3y + 14

Answer 2

Verified answer

4a)
3x + 5y
9x - 7y
------------ +
12x - 2y

b)
.5x^2 - 30y
18x^2 - ....y
----------------- +
23x^2 - 31y

c)
4x + 12y
..x - ...9y + 14
-------------------- +
5x + 3y + 14