Answer:
which pair of numbers has a product of ac and a sum of b
ac = (-5)(-3)
sum = -8
x^2 - 5x - 3x + 15
x(x-5)-3(x-5)
(x-3) (x-5)
x=3 x=5
what is the factored form of the trinomial = (x - 3) (x - 5)
2. Factor the following:
x^2 - 8 x + 15
The factors of 15 that sum to -8 are -3 and -5. So, x^2 - 8 x + 15 = (x - 3) (x - 5):
Answer: (x - 3) (x - 5)
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
the co ordinate of f(-5) is -7
Answer:
2sqrt(5)+11
Step-by-step explanation:
f(x)=sqrt(x)+11
f(20)=sqrt(20)+11
f(20)=sqrt(4*5)+11
f(20)=sqrt(4)*sqrt(5)+11
f(20)=2*sqrt(5)+11
Y=7.5
Isolate the variable by dividing each sides by factors that don't contain the variable. Hope this helps!
