Question

What are the approximate solutions of 2x^2 + 9x = 8 to the nearest hundredth?

Answer 1

I would recommend getting it into the form
ax^2+bx+c=0

then use the quadratic formula
can you do that?

Answer 2

not at all x.x

Answer 3

okay to get into the form ax^2+bx+c=0
you must subtract 8 to both sides.
this gives
2x^2 + 9x -8=0

quadratic formula, do you know what it is?

Answer 4

yes

Answer 5

x ≈ 1.22 and x ≈ 3.28

x ≈ −0.76 and x ≈ 5.26

x ≈ −1.22 and x ≈ −3.28

x ≈ −5.26 and x ≈ 0.76
These are the answers I am given that is why I do no understand

Answer 6

okay well the standard form is
ax^2+bx+c=0

so match a b and c with your new equation
2x^2 + 9x -8

and substitute those values into the quadratic formula