volume_mute
Expand 3(x + 8) (x + 2)
publish date: 2020/11/26 01:52:00 GMT+11
volume_mutea - 3x2 + 30x + 16
b - 3x2 + 24x + 48
c - x2 + 30x + 48
d - 3x2 + 30x + 48
a
b
c
d
Correct Answer
d
Explanation
- Write the expression.
- 3(x + 8) (x + 2)
- Use FOIL to expand the pair of brackets.
- = 3(x2 + 2x + 8x + 16)
- Collect like terms within the brackets.
- = 3(x2 + 10x + 16)
- Multiply each of the terms inside the brackets by the term outside the brackets.
- = 3x2 + 30x + 48
Reference
Maths_Quest_10+10A_VC_Revised_Edition_Book