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Mathematics
Brennen
2 December, 09:37
14. x 2 + 10x - 25 = 0
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Hinton
2 December, 09:55
0
28+10x-25=0
3+10x=0
10x=-3
x=-0.3
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Yasmin Shepherd
2 December, 10:47
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think about two numbers that will get 25:
think about two numbers that will get 10
use the 5 times tables
5*5 = 25
Use 5+5 = 10
x^2+10x-25 = 0
(x+5) (x+5) = 0
x+5 = 0, x+5 = 0
x+5-5 = 0-5
x = - 5
x+5-5 = 0-5
x = - 5
Answer:
only x = 5
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