Question

Choose the correct product of (5x − 11)^2.

25x^2 − 110x + 121
25x^2 − 121
25x^2 + 121
25x^2 + 110x + 121

Answer 1

@dude

Answer 2

re-write it as
\( (5x − 11) (5x − 11)\) it might help looking at it easier

Answer 3

Now distribute

Answer 4

25x^2 + 121?

Answer 5

That would be the answer right?

Answer 6

Not quite, remember -11 times 5x is -55x

-55x-55x is -110x (They are both negatives)

Answer 7

I thought you couldnt do 5x * -11

Answer 8

When adding yes, but you are distributing here

Answer 9

Multiplying doesnt follow that

Answer 10

So i would have to do 5x * 5x, 5x * -11, -11 * 5x, and -11 * -11?

Answer 11

Yes

Answer 12

okay one sec

Answer 13

So it would be
5x * 5x = 25x^2
5x * -11 = -55x
-11 * 5x = -55x
-11 * -11 = 121

Answer 14

Yes

Answer 15

And then it would turn out to be like
25x^2 - 55x - 55x + 121?

Answer 16

Right, so now add -55x and -55x

Answer 17

-110

Sp it would be
25x^2 - 110x + 121?

Answer 18

Correct

Answer 19

So answer is A ^~^

Answer 20

Yesh :P

Answer 21

YAY