The value of p(t) = 2+t+2t2−t3 when t=0 is
a)2
b) 1
c) 4
d) 0
Explanation:p(0)=2+0+2(0)2–(0)3=2
The zero of the polynomial f(x) = 2x+7 is
a) 2/7
b) -2/7
c) 7/2
d)-7/2
Explanation:f(x)=2x+7⇒2x+7=0
⇒2x=−7 ⇒x=−7/2
∴x = −7/2 is a zero polynomial of the polynomial f(x).
What is the degree of the polynomial 3x2+2x?
a) 0
b) 1
c)½
d)2
The degree of the constant polynomial is…
a)0
b) 1
c) 2
d) 3
Explanation:The degree of the constant polynomial is 0. For example, 3 is a constant polynomial that is equal to 3x0, and its degree is 0.
One of the linear factors of 3x2+8x+5 is
a)(x+1)
b) (x-2)
c) (x+2)
d) (x-4)
Explanation:3x2+8x+5 = 3x2+ 3x+5x+5
3x2+8x+5 = 3x(x+1)+5(x+1)
3x2+8x+5 = (3x+5)(x+1)
Therefore, (x+1) is one of the factors of 3x2+8x+5.
The coefficient of x in 7x2+6x-2 is………….
a) 2
b)6
c) -2
d) 7
Explanation:The coefficient of x in 7x2+6x-2 is 6. Because the number multiplied by x is 6.
