Answer:
The product is the difference of squares is
Step-by-step explanation:
Explanation
- The given expression is (4-6 y)(4+6y).
- We have to multiply the given expression.
- Square the first term 4. Square the last term 6y.
Answer:
Step-by-step explanation:
2
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Answer:
(x+1)^2 + (y+1)^2 = 49
Step-by-step explanation:
We can write the equation of a circle as
(x-h)^2 + (y-k)^2 = r^2
where (h,k) is the center and r is the radius
(x- -1)^2 + (y- -1)^2 = 7^2
Simplifying
(x+1)^2 + (y+1)^2 = 49
40 = 0.5r
40/0.5 = r
80 = r
just divide the number in front of the r so that you can figure it out
