Answer:
option C and D
Step-by-step explanation:
15x^2 - 46x + 35=0
First multiply 15 and 35. 15* 35 = 525
Product is 525 and sum is -46
-21 times -25 = 525
-21 +(-25)= -46
break the middle term -46x using factors -21 and -25
[tex](15x^2 - 21x)+(-25x + 35)=0[/tex]
Take out GCf from each group
3x (5x-7) -5(5x-7)=0
Factor out 5x-7
(5x-7)(3x-5)=0
Now we set each factor =0 and solve for x
5x -7 =0
add 7 on both sides and then divide it by 5
x= 7/5
3x -5 =0
add 5 on both sides and then divide by 3
x= 5/3
