Question

Which products result in a difference of square or perfect square trinomial? Plzzz help quick!!

Answer 1

1, 2, 5 & 6 on ED2020

Box 1 (5X+3)(5X-3)

Box 2 (7X+4)(7X+4)

Box 3 - NO

Box 4 - NO

Box 5 (X-9)(X-9)

Box 6 (-3X-6)(-3X+6)

Explanation:

Answer 2

• perfect square: 2, 5
• difference of squares: 1, 6

Explanation:

If the two factors are identical, their product will be a perfect square.

If one of the factors is the difference of terms that are summed in the other factor, the product will be the difference of squares.

(a +b)(a -b) = a² -b² . . . . . matches the 1st and 6th choices

(a +b)(a +b) = (a +b)² . . . . matches the 2nd and 5th choices