Step-by-step explanation:
x^3+x^2+4x+4=0
x³+x²+4x=-4
x(x²+x+4)=-4
either
x=-4
or
x²+x+4=-4
x²+x+4+4=0
x²+x+8=0
comparing with ax² +bx+c
a=1
b=1
c=8
x={-1±√{1²-4×1×8}}/2×1
x={-1±√{-31}}/2
Step-by-step explanation:
5(r + 9) - 2(1 - r) = 1
5r + 45 - 2 + 2r = 1
7r + 43 = 1
7r = -42
r = -6.
Name the first even integer you are looking for

. The next even number is

.
Their sum is

, so

. That means

, hence

.
So, the desired numbers are

and

.
Answer:
they are equal so what one shows that they rise 2 run 2
Step-by-step explanation:
Answer: (12,2480),(−1,−380)
Step-by-step explanation: