Solve the quadratic equation 8x^2-5x-4=0
give your answer to 3 significant figures

-1.09 or 0.461

Step-by-step explanation:

The quadratic formula is : -[b plus or minus square root of (b^2 - 4ac)] divided by 2a.

a quadratic equation has 2 answers. look below:

Equation1: 5 + square root of -5squared minus 128 / 16 = 5 -3 time square root of 17divided by 16 = 0.461

Equation 2: 5-3 times square root of 17 divided by 16 = -1.09

Hope this helps

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

d

step-by-step explanation:

i used the pitagoras theoreme