Question

Findthezerosandnumberofzerosof =2 +9+18Showthemonagraph please answer

Answer 1

Answer:

sorry don't know sorry ??

Answer 2

Step-by-step explanation:

In the given polynomial x

2

+9x+18,

The first term is x

2

and its coefficient is 1.

The middle term is 9x and its coefficient is 9.

The last term is a constant term 18.

Multiply the coefficient of the first term by the constant 1×18=18.

We now find the factor of 18 whose sum equals the coefficient of the middle term, which is 9 and then factorize the polynomial x

2

+9x+18 and equate it to 0 as shown below:

x

2

+9x+18=0

⇒x

2

+3x+6x+18=0

⇒x(x+3)+6(x+3)=0

⇒(x+3)(x+6)=0

⇒(x+3)=0,(x+6)=0

⇒x=−3,x=−6

Hence, the zeroes of the polynomial x

2

+9x+18 are −3,−6 and therefore, the number of zeroes are two.