Answer:

Step-by-step explanation:
we know that
The general equation of a quadratic function in factored form is equal to

where
a is a coefficient of the leading term
x_1 and x_2 are the roots
we have

substitute

Applying the distributive property convert to expanded form




therefore

Answer: Choice C)40cm
Step-by-step explanation:
We know that cosp=0.6 and PM=24 so,
PM/PN=0.6
24/PN=0.6
by rearranging we get
PN=24/0.6
PN=40
X^2= (x-2[root of x])(x+2[root of x])
-2 |x| = 0
|x| = -2/0
|x| = 0
x= 0
I think it is like dis , lam not sure :)