Question

Given the following perfect square trinomial, fill in the missing term.
4x2 + ___x + 49

Answer 1

4x^2

Answer 2

Do you understand how to complete the square?

If it was a^2 + bx + c

(b/2)^2 = c

So that means the b = sqrt(c) * 2

b = sqrt(49) * 2

b = what?

Answer 3

You find the square root of the third term or c^2 and double it. √49 = 7 * 2 = ?

Answer 4

is it 28 ?

Answer 5

No. What's 7 * 2?

Answer 6

that shows up as a square so are you asking what 7 & 2 is multiplied ?

Answer 7

actually you're right.

Answer 8

yay lol

Answer 9

It's 28.