SOLUTION: Did the way my school factored this make sense or is there an easier way to solve this?
y^4 + y^2 - 6
Their solution:
When a problem looks slightly odd, we can make it app
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-> SOLUTION: Did the way my school factored this make sense or is there an easier way to solve this?
y^4 + y^2 - 6
Their solution:
When a problem looks slightly odd, we can make it app
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Question 1106371: Did the way my school factored this make sense or is there an easier way to solve this?
y^4 + y^2 - 6
Their solution:
When a problem looks slightly odd, we can make it appear more natural to us
by using substitution (a procedure needed for calculus). Let u=y^2. Factor the expression with u’s. Then, substitute the y^2 back in place of the u’s. If you can factor more, proceed. Otherwise, you are done.
1.(y^2-2)(y^2+3)
2. y^4+y^2-6
3. u^2+u-6
4. (u2-2)(u+3) Answer by josgarithmetic(39625) (Show Source):
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