Question

Simplify: 3x – 5 + 23x – 9 a. 2(14x -6) b. 3x(13x-6) c. 2(13x -7) d. 3x(13x - 5)

Answer 1

Answer :

C

Step-by-step explanation:

• (a+b)(a-b) = a² - b²  
• a( b + c) = ab + ac
• a (b - c) = ab - ac
• a( b + c) + d( b + c) = (a + d) (b + c)

3x – 5 + 23x – 9 = 26x - 14

2 . 13x = 26x

2. -7 = -14

2 ( 13x -7) so answer is C

or another way :

a. 2(14x -6)  = 28x - 12

b. 3x(13x-6)  = 39x² - 18x

c. 2(13x -7)  = 26x - 14

d. 3x(13x - 5) = 39x² -15x

so answer is C

Hope this helps ^-^

Answer 2

Step-by-step explanation:

3x-5+23x-9

26x-5-9=26x-14

2(13x-7)