If the expression 2
6x²+13x+k is divisible by 2x+3, then what is the factor of the
expression?
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Answer:
[3x+2] and [2x+3] are the factors of the given polynomial
Step-by-step explanation:
Here if the polynomial is divisible by any other polynomial then the remainder must be zero when the value of x {i.e., 2x+3 } can be substituted then the whole value is equal to zero
ABOVE STATEMENT IS ALSO KNOWN AS REMAINDER THEOREM
here 2x+3=0 ⇒ x=-3/2 substitute in another polynomial
6(-3/2)²+13(-3/2)+k = 0
54/4 + (-39/2) + k =0
27/2 - 39/2 + k = 0
-12/2 + k = 0
-6 + k = 0
k = 6
the polynomial is 6x²+13x+6
2x+3 is also a factor of 6x²+13x+6
6x²+9x+4x+6=0
3x(2x+3)+2(2x+3)=0
(3x+2)(2x+3)=0
[3x+2] and [2x+3] are the factors of the given polynomial
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