3 years ago

What are the solutions of the equation 9x4 - 2x2 - 7 = 0? Use u substitution to solve.

Mathematics

1 answer:

zaharov [31]3 years ago

4 0

Answer: this is what i got hope this helped i took a sceernshot of it

Step-by-step explanation:

ples make brainly

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Jay’s father is twice as old as Jay. In 20 years Jay will be two thirds as old as his father. Find the number

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Let the age of Jay be x years, so age of Jay's father is 2x years .

After 20 years,

Jay's age will be $(x+20)years$

And Jay's father age will be $(2x+20) years$

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Step-by-step explanation:

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