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Mathematics
Dandy
30 January, 05:07
Solve for x. Write both solutions, separated by a
comma.
9x2 - 4x - 5 = 0
+2
Answers (
2
)
Jade Hernandez
30 January, 06:14
0
x = - 5/9, x = 1
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Barrett Brock
30 January, 06:22
0
Answer: - 5/9 or 1
Step-by-step explanation:
9x2-4x-5=0
Factorise
Factors of - 45 that will give-4 is - 9&5
Substitute
9x2-9x+5x-5=0
9x (x-1) + 5 (x-1) = 0
(9x+5) (x-1) = 0
9x+5=0
9x = - 5
X = - 5/9 or
X-1=0
X=1
X = - 5/9 or 1
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