We use the distributive law twice here. First distribute the term (2x + 3) as follows.
(2x + 3)(4x -5) | = | (2x + 3)(4x) - (2x + 3)(5) |
(2x + 3)(4x) - (2x + 3)(5) | = | 8x2 + 12x - (10x + 15) | |
= | 8x2 + 12x - 10x - 15 | ||
= | 8x2 + 2x - 15 | Gathering terms in x together to simplify |
Enter this as 8*x^2 + 2*x - 15
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