Multiply (5+2i) (4-3i)
enter your answer in standard form

20 + 23i - 6i²

step-by-step explanation:

(5 + 2i) (4 - 3i) do foil (multiply f-irst o-uter i-nner l-ast)

5 x 4 + 5 x -3i + 2i x 4 + 2i x -3i then lay it out

20 + 15i + 8i - 6i² combine like terms

20 + 23i - 6i² answer

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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