(9)
b(x) =2x² + 11x – x – 30
Since x + 2 is a factor
2x² + 7x – 15
x + 2√2x³ + 11x² – x – 30
2x³ + 4x²
____________
7x² – x – 30
– 7x² + 14x
___________
– 15x – 30
– 15x – 30
__________
0
: . 2x² +7x – 15
2x² +10x – 3x – 15
2x(x + 5) -3(x + 5)
(x+5)(2x-3)
The Zero’s of g(n)
-5, 3/2 and -2
(9b)
3(2^x) + 3^y-2) = 25
2^x + 3^y+1 = -19
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