2. Simplify by removing factors of 1.
3. Multiply and simplify
7z^3/3p^3 * 9p^7/49z
4. Multipy and simplify
w^2-3w-10 / w^2-4w +4 * w-2/w-5
a) 0 (look at the denominator)
b) 4, -4
Post these under the mathematics section next time
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