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) x h(t) = (4x - 2) (5x - 3)
=20x^2 - 12x + 10x + 6
=20x²-2x+6
Elijah made a mistake when multiplying the last terms, 10x and 6. The correct answer should be:
s(t) x h(t) = (4x - 2) (5x - 3)
= 20x^2 - 12x - 10x + 6
= 20x^2 - 22x + 6