Answer:
( - 7 + √17 ) / 2, ( - 7 - √17 ) / 2
Step-by-step explanation:
x^2 = - 7x - 8
x^2 + 7x + 8 = 0
Here,
a = 1
b = 7
c = 8
D = b^2 - 4ac
= 7^2 - 4 ( 1 ) ( 8 )
= 49 - 32
D = 17
x = - b ± √D / 2a
= - 7 ± √17 / 2 ( 1 )
x = ( - 7 + √17 ) / 2, ( - 7 - √17 ) / 2
Your answer will be 21x+7y-13
Answer 17.5
You take a and b multiple each by its self to find c^2 then find its square root then that’s the answer
Answer:
3
2
−
8
−
3
Step-by-step explanation:
7
+
2
−
1
0
+
3
2
−
1
0
−
3
+
2
+
3
2
−
1
0
