Which products result in a difference of squares or a perfect square trinomial? Check all that apply. (5x+3)(5r-3)
(Tx + 4)(7x + 4)
(2x + 1)(x + 2)
(4x-6)(x+8)
(x-9)(x-9)
0 (-3r-6)(-3r+6)

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

If a is a nonzero real number then the reciprocal of a is