Question

I have a couple math questions I'm stuck on?

1.) If (x+3)^2=42, what is the approximate positive value of x?

A.) 0.48
B.) 3.48
C.) 5.48
D.)6.48


2.) Which numbers should be multiplied to obtain 183^2-139^2 ?

A.) 44 and 44
B.) 1936 and 1936
C.) 44 and 322
D.) 33350 and 33628

Thank you in advance if you help :)

Answer 1

I'll also give you a medal and fan you, I really need help.

Answer 2

To evaluate this: \((x+3)^2 = 42\), expand the expression to the left and get a quadratic equation form from the expression

Answer 3

Can you try that?

Answer 4

I got the answer for the first question, I just need help on the second one now, if you can help with that.

Answer 5

okay, simply evaluate \(183^2-139^2\) using a working calculator and equate your result to the product of two unknown numbers (in this case, i'll pick \(x\) and \(y\))

Answer 6

I get the evaluate part but the last part doesn't make sense to me, what do you mean?

Answer 7

What was your evaluation result?

Answer 8

Umm, the calculator gave me 14168..?

Answer 9

Okay, so do a quick check on your options and see which gives you that same result

Answer 10

Option C. seems more like it :)

Answer 11

Just curious, but was your solution to the first question?

Answer 12

Thank you so much :) and for the first option I put 3.48 so option B

Answer 13

Good one! :)

Answer 14

Thank you :)

Answer 15

You're welcome :)