volume_mute
Multiply
publish date: 2023/05/29 00:40:00 GMT+10
-6(-3y - 8)
Please keep the order and numbers to come before variables
Correct Answer
$18y+48$
Explanation
- Distribute the multiplication by -6
- -6(-3y - 8) = -6(-3y) - (-6)(8)
- Do the multiplications.
- = 18y - (-48)
- Write the result in simpler form. Add the opposite of -48
- = 18y + 48
Another approach is to write the subtraction within the parentheses as addition the opposite. Then we distribute the multiplication by -6 over the addition
- Add the opposite of 8
- -6(-3y - 8) = -6[-3y + (-8)]
- Distribute the multiplication by -6
- = -6(-3y) + (-6)(-8)
- Do the multiplication
- = 18y + 48
Reference
Mathematics for college students