13.) P(x) = x^4 - 5, Q(x)=4x+1 {{{}14.) P(x)=x^3 - 5x +3, Q(x) = -x^3 + 5x +3?

Question

find all real values of x for which tha function are equal. Round your answers to the nearest hundredth?
please help me

Answer 1

13.) P(x) = x^4 - 5, Q(x)=4x+1

x^4 - 5 = 4x + 1
x^4 - 4x - 6 = 0

I can't find a way to factor this. Are you sure the equations you gave are right?


14.) P(x)=x^3 - 5x +3, Q(x) = -x^3 + 5x +3

x^3 - 5x + 3 = -x^3 + 5x + 3
2x^3 - 10x = 0
2x(x^2 - 5) = 0

x = 0

x^2 - 5 = 0
x^2 = 5
x = +- sqrt 5 = +- 2.24

Answer 2

the p(x) should be equal to p(x)
and the Q(x) should be equal to Q(x),
so,
2)x^4-5 = x^3-5x+3 and 1)4x+1 = -x^3+5x+3
so,
we should draw the functions of 1) and 2)
and see where they have equal points.

Answer 3

P(x) = x^4 - 5
(x^2-sqrt(5))(x^2+sqrt(5)=0
(x^2-sqrt(5)) = 0 --> x = +/- 5^1/4 = +/- 1.50
(x^2+sqrt(5) =0 -->x = +/- 1.50i

Q(x)=4x+1
x = -1/4

P(x)=x^3 - 5x +3
x = 1.83, 0.66, - 2.49

Q(x) = -x^3 + 5x +3
x= -1.83, -.66, 2.49

Answer 4

look's like calculous, good luck! haha the guy who discovered calculous did it in 2 days, figured out all the rules and everything, I heard his head was bigger than a pumpkin, well, not bigger than the pumpkin you see at the fair, could you imagine, that'd be a huge head

Answer 5

Wish dey had dis when i was in school

Answer 6

Wow now thats a math problem . . . . .

Answer 7

4.20