Question

what is the second term of (p+q)^5
1. 25p^4
2. 5p^4q
3. 25p^4q
4. 125p^4q

Answer 1

2

Answer 2

thank you. can you help me with another ! I SUCKKKKKK AT ALGEBRA

Answer 3

@Lolovitz

Answer 4

No problem bro ( or sis actually ;] )

Answer 5

thank you. its a major help :)

One zero of f(x)=x^3+2x^2-5x-6 is 2. what re other zeroes of the function?

Answer 6

1. 1 &3
2. -1 & -3
3. 2 & -3
4. 2 & 3

Answer 7

If you use x=1 f(x) =1+2-5-6 which is not equal to zero. So 1 is not the zero of this function.
Now we will see -3.
x=3 f(x)=-27+18+15-6=0 So -3 is the zero of this function. So it is the thirs answer as the only one without 1 and with -3.
3.2 & -3
Hope i helped. Glad to help with anymore problematic question you may have.

Answer 8

@Lolovitz
OH MY GOSH!!!!!!
you made it so much easier to understand.... ive been so confused. so I just plug the #"s into the x?

Answer 9

Yeah. Once you substitue the X with real values you can calculate the value of function for this specific value of x. Needless to say if for a specific value of x f(x)=0 then this value of x is the zero of this function.
However if you have a function and you have no possible idea's what the possible zero's of this function are you can take it to pieces in some cases. For exampl the function
f(x)=x^3-2x^2-5x+6=(x-3)(x+2)(x-1) so the zero's of this function are the values of x in which
x-3=0 OR x+2=0 OR x-1=0 So x=3 OR x=-2 OR x=1
Hope i helped. With any more question just message me somehow ;] :3

Answer 10

thank you :)

I have one more question from my homework, it asks which of the 2 x's fits as its only 2 real zeroes, but I don't understand how you put two into one equation !



which f the following quartic functions has x=-2 and x=-3 as its only two real zeroes?

Answer 11

well If x=-2 and x=-3 are the zero's then x+2=0 or x+3=0
f(x)=(x+3)(x+2)*SUMTHING=(x^2+5x+6)*SUMTHING

Answer 12

1. x^4-5x^3+7x^2-5x+6
2. X^4+5x^3 +7x^2+5x+6
3. x^4+5x^3+7x^2-5x-6
4. x^4-5x^3+7x^2+5x-6

Answer 13

hmm. Just plug -3 and -2 seperatly into each one of this function and see which one for x=-2 equals zero and for x=-3 equals zero.

Answer 14

so both answers have to = 0 when I separately plug in -2 then -3?

Answer 15

Yes. For any more question find me on skype if you can - marek.wojnicz the guy with killer bunny on the avatar.;]