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Write t for ture and f for false for eac...

Write t for ture and f for false for each of the following:
1. In-x, the constant trem is -1
2. The coefficient of x in` x^2-3x+5` is 3. `(5x-7)-(3x-5)=2x-12`
4. `(3x+5y)(3x-5y)=(9x^2-25y^2)`
5. If a=2 and b=`1/2` then value of `ab(a^2+b^2) is 4.1/4`

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The correct Answer is:
F
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