kgrade 8 sample powerpoint RAE_Quiz.pptx

grade 8 sample powerpoint RAE_Quiz.pptx

1. Question Simplify: (x² - 9) / (x - 3) A. x+3 B. x-3 C. x²+3 D. Cannot be simplified

2. Answer & Explanation ✅ Correct Answer: A x² - 9 = (x-3)(x+3). Divide by (x-3). Answer: x+3.

3. Question Simplify: (2x² + 6x) / (2x) A. x+3 B. x²+3 C. 2x+6 D. Cannot be simplified

4. Answer & Explanation ✅ Correct Answer: A (2x²+6x)/(2x) = 2x(x+3)/2x = x+3.

5. Question Simplify: (x²+4x+4) / (x+2) A. x+2 B. x²+2 C. x+4 D. Cannot be simplified

6. Answer & Explanation ✅ Correct Answer: A x²+4x+4 = (x+2)(x+2). Divide by (x+2). Answer: x+2.

7. Question Simplify: (x²+7x+10) / (x+5) A. x+2 B. x+5 C. x+7 D. x+10

8. Answer & Explanation ✅ Correct Answer: A x²+7x+10 = (x+5)(x+2). Divide by (x+5). Answer: x+2.

9. Question Simplify: (x²-25) / (x+5) A. x-5 B. x+5 C. x²-5 D. Cannot be simplified

10. Answer & Explanation ✅ Correct Answer: A x²-25=(x-5)(x+5). Divide by (x+5). Answer: x-5.

11. Question Simplify: (3x²+12x) / (3x) A. x+4 B. 3x+12 C. x²+4 D. Cannot be simplified

12. Answer & Explanation ✅ Correct Answer: A (3x²+12x)/(3x) = 3x(x+4)/3x = x+4.

13. Question Simplify: (x²+3x) / x A. x+3 B. x²+3 C. x-3 D. Cannot be simplified

14. Answer & Explanation ✅ Correct Answer: A (x²+3x)/x = x(x+3)/x = x+3.

15. Question Simplify: (x²+10x+25) / (x+5) A. x+5 B. x+25 C. x²+5 D. Cannot be simplified

16. Answer & Explanation ✅ Correct Answer: A x²+10x+25 = (x+5)(x+5). Divide by (x+5). Answer: x+5.

17. Question Simplify: (2x²+8x+6) / (2x+2) A. x+3 B. x+2 C. x+4 D. Cannot be simplified

18. Answer & Explanation ✅ Correct Answer: A Factor numerator: 2(x²+4x+3)=2(x+1)(x+3). Denominator: 2(x+1). Cancel. Answer: x+3.

19. Question Simplify: (x²-4x+4) / (x-2) A. x-2 B. x+2 C. x²-2 D. Cannot be simplified

20. Answer & Explanation ✅ Correct Answer: A x²-4x+4 = (x-2)(x-2). Divide by (x-2). Answer: x-2.