The total marks obtained in a mathematics test was 384 if the mean was 24 how many children took the test
1 answer:
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Answer:
11. 10x^2 - 13x - 3
12. 5x^2 + 18x + 5
Step-by-step explanation:
11. Product means multiplication, so you can multiply (5x + 1) and (2x - 3).
- Using the FOIL (First+Outer+Inner+Last)
So:
12. (So, you distribute the 2 to x^2 + 5x + 30, then combine like terms).
Hopefully, this helped you. Good luck & have a good day!