Question

SHARP
8. If a - b = 4 and ab = 21, find the value of
a-b
a) 312 b) 316 c) 315 d) 317
9. If 2x + 3y = 13 and xy = 6, find the value of
8x' + 27y
a) 790 b) 791 193
d) 795
10. If 3x - 2y= 11 and xy=12, find the value o
27x'- 8y
a) 3705 b) 3706 c) 3707 d) 3708.
Find the following products.
11 (2a + 3b) (4a2 - 6ab +962) = 22+63
a) 8a-27b 1b) 8a'+
276) 2013
c) -8a? - 27b d) 7a' + 2762 )
2 (5x – 2y) (25x2+ 10xy + 4y2) = _03-43
a) 125x3-83
b) 125x+8y?
c)-125x3-8y3 d) -125x+8y3
2pq +49
P+
+29
p22pq
+?
3
چاہتے
7
49
7​

Answer 1

Answer:

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