Question

How many solutions does the following equations have?

1. –7x² + 6x + 3 = 0

2. –8x² – 8x – 2 = 0

Thanks in advance to all answers! :D

Answer 1

2 each

Answer 2

1) 2 solutions

2) a double solution

Answer 3

both equations are quadradic equations ... so at most they have two solutions, either both real or both imaginary

Answer 4

both are quadratic equation and therefor cannot have more than 2 solutions........

Answer 5

both are quadratic equation and therefor cannot have more than 2 solutions........
so 2

Answer 6

in the latter case, it has only one solution .. .i.e two roots coincide with each other

Answer 7

for (1) , b^2 -4ac = 36-4(-7)(3) >0 therefore, 2 solutions
for (2), b^2 -4ac =64-4(-8)(-2) =0 therefore, 1 repeated root