Given that x=1.5, is the only solution to the equation 4x^2-
ax+b=0, find the value of a and b. The working solution is since x=1.5 is the only solution, the equation is a perfect square (2x-3)^2=0, 4x^2-12+9=0. By comarison, a = 12 , b = 9 .
2007-09-07 18:39:57 · 3 answers · asked by ♪£yricảl♪ 4 in Science & Mathematics ➔ Mathematics
You are exactly right, and your explanation is perfect.
2007-09-07 18:45:09 · answer #1 · answered by jim n 4 · 0⤊ 0⤋
are you saying why it works with the perfect square?
there's no other solution. these numbers may seem random to you, but it's probably because you may have just copied them down from the answer key or wrote them down without understanding it.
...just give it a few minutes for it to sink in.
2007-09-08 01:49:56 · answer #2 · answered by (+_+) B 4 · 0⤊ 0⤋
I don't know how to explain it any better than that. What are you having trouble with?
2007-09-08 01:45:47 · answer #3 · answered by gebobs 6 · 0⤊ 0⤋