Question

Check weather 7+3x is a factor of 3x cube+7x

Answer 1

Answer:

7+3x is a factor of 3x³+7 x

7+3x =0

3x = -7

x=-7/3

3x³+7x

3(-7/3)³+7(-7/3)

3(-343/27)-(49/3)

-343/9 -49/3

take lcm of 3 and 9 = 9

-343-147/9 = -490 /9

so 7+3x is not the factor of 3x cube + 7x

Answer 2

Answer:

No , 7+3x is not factor of 3x³+7x

Step-by-step explanation:

To find whether

is a factor of

find the value of x from f(x) and put to g(x) ,if expression becomes zero than f(x) is a factor of g(x),otherwise not

g(-7/3) is not zero,hence f(x) is not a factor of g(x)

Hope it helps you.