Answer:
x^2 - 64
Step-by-step explanation:
A difference of squares is a special product in the form (a^2 - b^2)..their factored form is (a - b)(a + b)..
Thus here a = x and b = 8, thus if x + 8 is a factor, then x - 8 is also a factor..
(x + 8)(x - 8) <-- expand this out using difference of squares rules..
= (x)^2 - (8)^2
= x^2 - 64 <-- answer...
You could also expand that using FOIL (FOIL - first, outer, inner, last)..
(x + 8)(x - 8)
= (x)(x) + (x)(-8) + (8)(x) + (8)(-8)
= x^2 - 8x + 8x - 64 <-- the -8x and 8x cancels out..leaving you with..
= x^2 - 64
Answer:
The onion skin math method helps you understand
Step-by-step explanation:
I love you, y
Answer: 20 Decibels
Step-by-step explanation:
I don't know
Answer:
it should be B,
Step-by-step explanation:
the y-intercept is where it crosses the y axis, so that is the plus 2,
and the slope is -3/7 because it is down 3 over 7 hope this helps
