Question

how many solutions are there for 5x^2+7x -4 =0

Answer 1

a) 0
b) 1
c) 2
d) 3

Answer 2

work out the values of the discriminant
b^2 - 4ac

Answer 3

what?

Answer 4

7^2 - 4*5*-4 = ?

Answer 5

im confused

Answer 6

if its <0 there are no real solutions
for >0 there are 2

Answer 7

are you familiar with the formula for the roots of a quadratic equation?

Answer 8

so the solutions are 2

Answer 9

yes