+0

Algebra

0
114
1

Let 7x^2 + 8x = h. What value of h will give us exactly one solution for x?

May 19, 2022

1+0 Answers

#1
+100
0

turn this into: 7x^2 + 8x - h = 0

using the quadratic formula to find the solutions:$${-8 \pm \sqrt{64+28h} \over 14}$$

this means that $$\sqrt{64+28h}$$ = 0

h = $$-$$$$16\over 7$$

May 19, 2022