# Calculus

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Given m(x)=7/5x2+9-2 what is the domain of m in set notation form?

• Calculus -

I bet you meant ....

m(x) = (7/5)x^2 + 9x - 2

= (7/5)[x^2 + (45/7)x ] - 2
= (7/5)[x^2 + (45/7)x +2025/196 - 2025/196 ] - 2
= (7/5)[(x + 45/14)^2 - 2025/196 ] - 2
= (7/5)(x+45/14)^2 - 405/28 - 56/28
= (7/5)(x+45/14)^2 - 349/28

• ARGGHHH Calculus -

I read your other post first and assumed this one was the same type.

for this one the way you typed it,
the domain is

{x | x ∈ R}

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