Find the zero of the polynomial in each of the following cases:
(i) p(x) = x + 5
(ii) p(x) = x - 5
(iii) p(x) = 2x + 5
(iv) p(x) = 3x - 2
(v) p(x) = 3x
(vi) p(x) = ax, a ≠ 0
(vii) p(x) = cx + d, c ≠ 0, c, are real numbers.
Answers
Answered by
92
I) x+5=0
x=-5(zero)
ii) x-5=0
x=5(zero)
iii) 2x+5=0
x=-5/2(zero)
IV) 3x-2=0
x= 2/3(zero)
v) 3x=0
x=0(zero)
vi) ax=0
x=0(zero)
vii) cx+d=0
x=-d/C(zero)
x=-5(zero)
ii) x-5=0
x=5(zero)
iii) 2x+5=0
x=-5/2(zero)
IV) 3x-2=0
x= 2/3(zero)
v) 3x=0
x=0(zero)
vi) ax=0
x=0(zero)
vii) cx+d=0
x=-d/C(zero)
Answered by
124
Hey there !!!!!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Zero of the polynomial of P(x) is value of variable "x" at which P(x) = 0
So,
1)P(x) = x+5
x+5=0
x=-5
~~~~~~~~~~~~~~~~~~~~~~~~
2)p(x)= x-5
x-5= 0
x=5
~~~~~~~~~~~~~~~~
3)p(x) = 2x+5
2x+5 = 0
x= -5/2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4)p(x) = 3x-2
3x-2 = 0
x= 2/3
~~~~~~~~~~~~~~~~~~~~~~
5)p(x) = 3x
3x = 0
x= 0
~~~~~~~~~~~~~~~~~~~~
6)p(x) = ax
ax= 0
x = 0
~~~~~~~~~~~~~~~~~~~~~
7) p(x) = cx+d
cx+d = 0
cx = - d
x = -d/c
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hope this helped you..........................
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Zero of the polynomial of P(x) is value of variable "x" at which P(x) = 0
So,
1)P(x) = x+5
x+5=0
x=-5
~~~~~~~~~~~~~~~~~~~~~~~~
2)p(x)= x-5
x-5= 0
x=5
~~~~~~~~~~~~~~~~
3)p(x) = 2x+5
2x+5 = 0
x= -5/2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4)p(x) = 3x-2
3x-2 = 0
x= 2/3
~~~~~~~~~~~~~~~~~~~~~~
5)p(x) = 3x
3x = 0
x= 0
~~~~~~~~~~~~~~~~~~~~
6)p(x) = ax
ax= 0
x = 0
~~~~~~~~~~~~~~~~~~~~~
7) p(x) = cx+d
cx+d = 0
cx = - d
x = -d/c
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hope this helped you..........................
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