Question

could any one help me please!!!!! with these few questions?
1. what is a polynomial function in standard form with zeroes 1,2,-2, and -3?
A. x^4+2x^3+7x^2-8x+12
B. x^4+2x^3-7x^2-8x+12
C.x^4+2x^2+8x+12
D. x^4+2x^3+7x^2+8x+12

2. what are the zeroes of the function? what are their multiplicities?
f(x)=5x^2-30x
A. the number 3,-2, and 0 are zeros of multiplicity 1
B. the numbers 3,-2, and 0 are zeros of multiplicity 2
C. the numbers -3,2, and 0 are zeros of multiplicity 1
D. the numbers -3,2, and 0 are zeroes of multiplicity 2

Answer 1

3 what are the real or complex solutions of the polynomial equation?
x^3-216=0
A. 3,3+3i square root(3),3-3isqr(3)
B. 3,-3+3isqr(3),-3-3isqr(3)]
C. 6,3+3isqur(3),-3+3isqur(3)
D. 6,-3+3isqur(3),-3-3isqur(3)
4. divid -3x^3-4x^2+4x+3byx-2
A. -3x^2+2x+24
B. -3x^2-10x-16, r(-29)
C. -3x^2+10x-16
D. -3x^2+2x+25.R35
5. find the roots of the polynomial equation
x^3-2x^2+10x+136=0
A. -3+-5i,-4
B. 3+-5i,-4
C. -3+-i,4
D. 3+-i,4

Answer 2

@amistre64 @austinL @lulu22 @Koikkara @Mani_Jha @mathslover @Niall @blondie16 @BrandonGarza777 @BrandonGarza777 @Vanessa_O,O @petiteme @Preetha @cwrw238 @CGGURUMANJUNATH @skinny23 @shrutipande9 @ash2326 @AravindG @Preetha @yunghustler @Grazes @ganeshie8 @GodIsMySavior @Henryblah HELP ASAP DO U KNOW THIS????????????????????

Answer 3

y did u tag me?

Answer 4

i tagged anyone that would show up

Answer 5

@rockstargirl17

Answer 6

@lovelygirl18. Is this for the test?

Answer 7

For number 1, multiply this together: (x-1)(x-2)(x-(-2))(x-(-3)) to find your answer. This form utilizes the form (x-r) to create a polynomial.

For number 2, you must factor f(x)=5x^2-30x to find the zeroes(aka roots) and find the multiplicity.

Is there any specific part you are having trouble with?

Answer 8

im the wrong 1 my sleek-feathered one

Answer 9

3. Factor it with difference of 2 cubes ( http://www.mathsisfun.com/algebra/polynomials-difference-two-cubes.html)

4. Use long division or synthetic division to divide. ( http://www.purplemath.com/modules/polydiv2.htm or http://www.purplemath.com/modules/synthdiv.htm)

5. If you can use a calculator, graph it out and find the x-intercepts. Otherwise, find the lower and upper bounds of the roots(if you know how) and then use synthetic division to "guess and check" for roots until you have a remainder that equals 0.

Answer 10

@zeinas yes it is for the test

Answer 11

@Grazes for #1 is it C ?

Answer 12

Nope. Try multiplying again. It may have been a little error.

Answer 13

1. B