
Domain restrictions are what x values make the denominator zero.
a² + 5a - 36 = (a + 9)(a - 4)
a ≠ -9 ; a ≠ 4
When you have something like this, all you need to do is substitute the values, the last is for what value of x
For the first one;
((x^2+1)+(x-2))(2)
(x^2+x-1)(2)
(2)^2+(2)-1
4+2-1
5
For the second one;
((x^2+1)-(x-2))(3)
(x^2-x+3)(3)
(3)^2-(3)+3
9-3+3
9
For the last one;
3(x^2+1)(7)+2(x-2)(3)
3((7)^2+7)+2((3)-2)
3(49+7)+2(3-2)
3(56)+2(1)
168+2
170
by Quadratic formula ,
, values of x are
. None of mentioned options are correct according to question!
<u>Step-by-step explanation:</u>
Here we have , expression x2 + 20 = 2x or ,
.
We know that Quadratic formula is :


⇒ 

Putting this value in equation
:
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Therefore , by Quadratic formula ,
, values of x are
. None of mentioned options are correct according to question!
Answer:
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Step-by-step explanation:
Divide the total amount of olive oil by the amount packaged into an individual bottle.
1560 / 24 = 65 bottles per hour