Question

Box + 4)
4. (5y - 1)(3y - 8)
2
Soluti
7. (3m - 4n)(2m-3n)
x - y
9.
3
TO S
10.
(*- Jaox
)
-8y) )
2
3
11.
4
EXAL
13. (3p2 +q?) 12p- 3q?)
2. (4x - 3)(2x + 5)
5. (7x + 2y)(x + 4y)
6. (9x + 5y) (4x + 3y)
8. (0.8x -0.5y)(1.5x - 3y) (x+241
bita
12. (x2-a?)(x-a
b (4a + 3b)
14. (2x2 - 5y2)(x+3y) 15. (x - y)(x2 + y's
-)*+
18. (x2 - y2)(x + 2y)
20. (3x +2y - 4)(x - y)
21. (x2-3x + 7)(2x + 3)
23. (9x2 - x +15) (x2 - 3) 24. (x2 + xy + y )(x - y)
26. (x2 -5x +8)(x2 +2)
Sol
16. (x + y^)(x2 - y²)
4
17.
х
+
1
х
х
19. (2x + 3y - 5)(x + y)
22. (3x2 +5x - 9)(3x -9)
25. (x2 - xy + y2)(x + y)
Simplify:
27. (3x + 4) (2x - 3) + (5x - 4)(x + 2)
29. (9x-7)(2x - 5)-(3x-8)(5x - 3)
31. (3x2 + 5x - 7)(x - 1)-(x2 - 2x +3)(x +4)
28. (5x - 3)(x + 4)-(2x + 5)(3x - 4)
30. (2x +5y)(3x + 4y) - (7x + 3y)(2x + y)​

Answer 1

Answer:

I will only give You answer of 19 rest you practice

Explanation:

19.

(2x + 3y -5)(x+y)

Multiply x with following first

2x² + 3xy - 5x

Now Multiply y with following

2xy + 3y² - 5y

Now Add Both

= 2x² + 3xy - 5x + 2xy + 3y² - 5y

=2x² + 3y² + 5xy + 5x - 5y

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