LuluMathLover101
18.02.2021 •
Mathematics
Find the positive zero of the function f(x) = x2 - 5x - 7. Round your answer to two decimal places
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Ответ:
BFF fjx
Step-by-step explanation:
Ответ:
Set the first number is a and the second is b.
We have two equations: a+2xb=24, 2xa+b=21
And we have 2xa+4xb=48 or 2xa=48-4xb
So: 48-4xb+b=21 or -3xb=21-48=-27 and we got b=-27:(-3)=9 and a= 6
a=6 and b=9