3. Polynomials
3.08 Roots and zeros
Interactive practice questions
Consider the function $f\left(x\right)=x^4-7x^3+12x^2+4x-16$f(x)=x4−7x3+12x2+4x−16.
a
Is $5$5 a zero of the function?
Yes
A
No
B
b
Is $4$4 a zero of the function?
Yes
A
No
B
c
Is $-1$−1 a zero of the function?
Yes
A
No
B
Easy
1min
Consider the function $f\left(x\right)=\left(x+1\right)^2\left(x-6\right)\left(x+2\right)^5$f(x)=(x+1)2(x−6)(x+2)5.
Easy
1min
Consider the function $f\left(x\right)=-3\left(x-6\right)^4\left(x+2\right)^5x^3$f(x)=−3(x−6)4(x+2)5x3.
Easy
1min
Consider the function $f\left(x\right)=x^3-3x^2-5x+15$f(x)=x3−3x2−5x+15.
Easy
3min
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