Question

y=x2+4.6x+4.7
y=3.3x-3.7
how do i solve?

Answer 1

y=y then
x2+4.6x+4.7=3.3x-3.7
\[x ^{2}+1.3x+8.4=0\]

Answer 2

i got that far, i just dont know what to do to find the solutions?

Answer 3

Multiply thru by 10 to eliminate decimals\[10x ^{2}+13x+84=0\]Use the quadratic formula. A=10, B=13, and C=84\[-13\pm \sqrt{169-4*10*84}\over2*10\]\[-13\pm \sqrt{-3191}\over20\]\[-13\pm56.49i \over 20\]\[-0.65\pm2.82i\]

Answer 4

these are my answer choices:

A. (–3.47, 3.48) and (2.17, –15.17)

B. (–3.47, –15.17) and (–2.17, –10.88)

C. (–3.47, –15.17) and (2.17, 3.48)

D. no solution

Answer 5

I would go with d. no solution as my solution is a complex results and maybe not applicable to your problem.