According to the rational root theorem, -2/5 is a potential rational root of which function?

a. f(x) = 4x4 – 7x2 + x + 25
b. f(x) = 9x4 – 7x2 + x + 10
c. f(x) = 10x4 – 7x2 + x + 9
d. f(x) = 25x4 – 7x2 + x + 4

answer fast pls have a timer

ANSWER

The correct answer is D

EXPLANATION

According to the Rational Roots Theorem, the possible rational roots are all the factors of the constant term expressed over the factors of the leading coefficient of the polynomial function.

Based on this we conclude that,

is a potential rational root of

The reason is that the numerator of this rational root is a factor of 4 and the denominator is a factor of 25.

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.