Question

Find the product. Simplify your answer.
–5(–3k^2–2k–4)

Answer 1

Of course,you have studied the multiplication of the different signs in arithmetic.Here you remember the rules again.

• (+)×(+)=(+),
• (+)×(-)=(-),
• (-)×(-)=(+)
• (-)×(+)=(-)

Now,The question is -5(-3k^2-2k-4)

`- 5( - 3 {k}^(2) - 2k - 4)`

`15 {k}^(2) + 10 k + 20`

Answer 2

15k² + 10k + 20

Explanation:

You can solve this equation by distributing -5 to all terms in the parenthesis

Solve:

• -5(-3k² - 2k - 4) ← Watch out for the signs in front of the numbers !
• -5(-3k²) - 5(-2k) - 5(-4) ←Negative times negative equals positive !
• 15k² + 10k + 20

Your solution is 15k² + 10k + 20

-Chetan K