simplify (x-2)^2?

Question

This is pretty easy my friend says, but when ever she explains it, its too hard.

Answer 1

well when doing sums X means multiply so it must be 2Xs and I don't know what this ^ but it is on the same key as the 6 so must be a mistake for 6 that would be 62
so 2Xs 62 would be 2 times 62 = 124

124 is the answer



.EDIT Oh dear look at all those above me they just make it more complicated and not one got the right answer.



.

Answer 2

X^2 - 4*x + 4

Answer 3

well, firstly i think you mean expand? not simplify haha

anyway

using the formula ( a - b )^2 = ( a ^2 - 2ab + b^2 )

you can deduce that in (x-2)^2, the a is x and the b is 2

thus if you sub into the formula

( x^2 - 2(x)(2) + (2)^2)
= x^2 -4x + 4

hope that's easier to understand

Answer 4

use the term F-O-I-L. first, outer, inner, last. so what you wanna do is make the problem into (x-2)(x-2). so you're gonna use FOIL and make it like this (x)(x)+(x)(-2)+(-2)(x)+(-2)(-2). so it's gonna be reduced down to ( x^2)+(-2x)+(-2x)+(4). then that goes to (x^2)+(-4x)+(4). and then x^2-4x+4 is the final answer. you are most likely near my age and i just wanna say, i had trouble with that too. but the F-O-I-L method helped me a lot.

Answer 5

(x - 2)²

= (x - 2)(x - 2)

Remember FOIL (First; Outer; Inner; Last terms from brackets)

First Terms
become x²

Outer Terms
become -2x

Inner Terms
become -2x

Last Terms
become +4

Written out in full format

x² - 4x + 4

Answer 6

Let's make it easy:
(x-2) squared, which is what we are trying to work
= (x-2)*(x-2)
Now we multiply out the brackets which
= x squared + (-2x) + (-2x) + 4
Gathering up terms:
= x squared - 4x +4 [ANSWER]

Answer 7

(x-2)^2
= x^2 - 4x + 4

Short cut:
- square the first number => x^2
- multiply the three terms => x*(-2)*2 = -4x
- square the second term => (-2)^2 = 4

Answer 8

(x-2)^2 = (x-2)(x-2) the terms are separated by the - (minus) sign
FOIL is the way to remember.
F first times first = x(x) =x^2 ( x squared)
Outside times outside x(-2)= -2x
Inside times inside -2(x) = -2x
add inside and outside (like terms)= -4x
Last last term times last term= -2(-2)=4 (minus x minus = +)
So: x^2 - 4x + 4 is the answer

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Please tell me if this helped!

Answer 9

simplify (x-2)^2
Well it is already in its most simple form. However, if ypu wish to expand it, just remember the two formulas below:
(a+b)^2 = a^2+2ab + b^2, and
(a-b)^2 = a^2-2ab + b^2
So in your case you would use the second formula getting:
(x-2)^2 = x^2 -4x +4).

Answer 10

(x-2)^2

this is the same as (x-2)(x-2)

so use the FOIL method to solve it...First Outside Inside Last

so multiply x*x...x*(-2)....x*(-2)....and finally (-2)*(-2)

so you get in an unsimplified manner

x^2-2x-2x+4

and finally simplified

x^2-4x+4