Answer:
I put the answers in the picture below!
Step-by-step explanation:
Answer:
The equations shows a difference of squares are:
<u>10y²- 4x²</u> $ <u>6y²- x²</u>
Step-by-step explanation:
the difference of two squares is a squared number subtracted from another squared number, it has the general from Ax² - By²
We will check the options to find which shows a difference of squares.
1) 10y²- 4x²
The expression is similar to the general form, so the equation represents a difference of squares.
It can be factored as (√10 y + 2x )( √10 y - 2x)
2) 6y²- x²
The expression is similar to the general form, so the equation represents a difference of squares.
It can be factored as (√6y + x )( √6y - x)
3) 8x²−40x+25
The expression is not similar to the general form, so the equation does not represent a difference of squares.
4) 64x²-48x+9
The expression is not similar to the general form, so the equation does not represent a difference of squares.
Answer:
x=3
y=–4
Step-by-step explanation:
kl=JM
3x+y=5
Jk=LM
3x-4y=25
3x+y=5
3x-4y=25
-5y=20
y=-20/5
y=-4
3x+y=5
3x+(-4)=5
3x=5+4
3x=9
x=3
Answer:
Step-by-step explanation:
