Melinda derives the quadratic formula from the following equation, and her first four steps are shown below. ax2 + bx + c = 0, where a + 0
Melinda's steps:
Step 1: r? +
bx
+
= 0
a
Step 2: x2 + bx =
c
a
a
Step 3: x2 +
+
b2
2a
a
a
Step 4:
+
с
*
)
2a
Are Melinda's first four steps correct?
• If her steps are correct, explain how you know.
• If her steps are incorrect, name the mistake(s) she made and explain how you know.
Respond in the space provided.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

If you could answer these your a life saver

Solve for x and select the correct answer