Answer:
Step-by-step explanation:
x^2+8x-3=0 (move constant to other side by adding 3 to each side)
x^2+8x=3 (halve thr linear coefficient, square it and add to each side, (8/2)^2=16)
x^2+8x+16=3+16 (now the left side is a perfect square)
(x+4)^2=19 (now take the square root of each side)
x+4=+-(19^(1/2)) (finally subtract the constant to isolate x by itself)
x= -4+-(19^(1/2))
x=negative four plus or minus the square root of nineteen
Answer:
the answer is c
Step-by-step explanation:
add the sum
Factor
what 2 numbers multily to get -12and add to get -4
-6and -2
(x-6)(x+2)=0
ser to zero
x-6=0
x=6
x+2=0
x=-2
6>-2
w=6
-2=z
3w+2z
3(6)+2(-2)
18-4
14
value is 14
option D
Answer:
Quadratic, 16, 18, 6
Step-by-step explanation:
Did this assignment myself
