I need to solve these problems.
2 answers:
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Answer:
There is some mistake in the question, because the solutions are x = -1.445 and x = -34.555
Step-by-step explanation:
Given the functions:
f(x) = x² + 4x + 10
g(x) = -32x - 40
we want to find the points at which f(x) = g(x).
x² + 4x + 10 = -32x - 40
x² + 4x + 10 + 32x + 40 = 0
x² + 36x + 50 = 0
Using quadratic formula:
1) 3x - 2y = -16 Subtract 3x from both sides
-2y = -3x - 16 Divide both sides by -2
y =
x + 8
2) 9x - 7y = -7 Subtact 9x from both sides
-7y = -8x - 7 Divide both sides by -7
y =
+ 1
3) x - 3y = 6 Subtract x from both sides
-3y = -x + 6 Divide both sides by -3
y =
- 2
-2y = -3x - 16 Divide both sides by -2
y =
2) 9x - 7y = -7 Subtact 9x from both sides
-7y = -8x - 7 Divide both sides by -7
y =
3) x - 3y = 6 Subtract x from both sides
-3y = -x + 6 Divide both sides by -3
y =