How is (x-y) ^2 + (X^2+2xy+y^2) simplified to 2x^2+2y^2?

A coin sold for $264 in 1976 and was sold again in 1989 for $ 459. Assume that the growth in the value V of the collector's item was exponential. what does k=?

Square root of 2 x squared divided by square root of 5x

What types of units perimeter have

64.48 divided by 8=n Using long division, find the quotient

Justin receives $15 $ 15 and puts it into his savings account. He adds $0.25 $ 0. 25 to the account each day for a number of days, d, after that. He writes the expression 15+0.25 (?1) 15 + 0.

What is the scientific notation for number of kilometers light will travel in 60 seconds?

70 p x 2 1/2 = how many pounds

A sporting goods store has 33 sets of golf clubs in stock. They get a shipment with 52 more sets of golf clubs. How many sets of golf clubs does the store have now?

Find the range of the function f (x) = 10-x squared

What is ctg of pi? in numbers what it represents?