Answer:
Now the square of x is x^2 and the square of x+ 28 is (x+28)^2.
The sum of the squares is x^2 + (x+ 28)^2.
x^2 + (x+ 28)^2
= x^2 + x^2 + 28^2 + 56x
= 2x^2 + 28^2 + 56x
Now let f(x) = 2x^2 + 28^2 + 56x
Step-by-step explanation:
Answer:
it means what's good and you can respond with nun much wbu? that what I respond with...
Step-by-step explanation:
Answer: it’s the b graph, like the one that curves.
Step-by-step explanation:
i just got it right on khan
When something has the same size,shape and measure it is congruent
Y = x^2 +2x
y = 3x +20
so:
x^2 + 2x = 3x + 20
subtract 3x from both side:
x^2 +2x -3x = 20
combine like terms:
x^2 -x = 20
subtract 20 from each side:
x^2 -x -20 = 0
factor the polynomial:
(x-5) (x+4) = 0
solve for x
x = 5 and x = -4 ( 5-5 = 0 and -4 +4 = 0 )
replace x = 5 in 2nd equation: y = 3(5) +20
y = 15 +20
y = 35
replace x with -4 in same equation:
y = 3(-4) +20
y = -12 +20
y = 8
so solution is (5,35) and (-4,8)
