Question

2x squared - 5x =3 solve using the quadratic formula please

Answer 1

@AccessDenied @Jadeishere @whpalmer4

Answer 2

so a = 2 b = -5 and c = -3

Answer 3

\(2x^2 - 5x = 3\)

\(2x^2 - 5x - 3 = 0\)

2 = a
-5 = b
-3 = c

Plug those values into the quadratic formula:

\(x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}\)

Answer 4

i don't know how to do the quadratic formula

Answer 5

@Hero

Answer 6

\[2x ^{2}\]

Answer 7

\[x = \frac{-(-5) \pm \sqrt{(-5)^2 - 4(2)(-3)}}{2(2)}\]

Answer 8

what you do from there?

Answer 9

Simplify it

Answer 10

so 2 = a, -5 = b and - 3 = c

so -(-5) = 5
(-5)^2 - 4(2)(-3) = 25 + 24 = 49
so x = 5 +- the square root 0f 49 all over 2 times 2

Answer 11

\[x = \frac{ 5 \pm \sqrt {49} }{ 4} \]

Answer 12

the square root of 49 is 7
so x = 5 plus or minus 7 all over 4
x = 3 or x = -1/2

Answer 13

thank you a million again

Answer 14

@Hero helped too

Answer 15

true
THANKS HERO YOUR MY HERO @Hero