Elijah used the distributive property to find the product of s(t) and h(t) . His work was marked incorrect. Explain Elijah's mistake. Correct Elijah's work to show the correct answer. s(t)⋅h(t)= (4x−2)(5x−3) =20x2−12x+10x+6 =20x2−2x+6

1 answer

Elijah's mistake was in distributing the 10x term incorrectly. When distributing, you need to multiply each term of the first expression (4x) by each term of the second expression (5x - 3).

To correct Elijah's work, we need to distribute the 10x term correctly.

s(t)⋅h(t) = (4x − 2)(5x − 3) = 4x * 5x - 4x * 3 - 2 * 5x + 2 * 3
= 20x^2 - 12x - 10x + 6
= 20x^2 -22x + 6

So the correct answer is s(t)⋅h(t) = 20x^2 - 22x + 6.