Ex1 - Math 17 TWHFW-7 Ex 1 (HW 4) Part I Please do the...

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Unformatted text preview: Math 17 TWHFW-7 Ex 1 (HW 4) Part I Please do the exercises as indicated. Write down all final answers on a separate piece of paper. I. Present the completely factored out form of the following: 1. 2x4 − 20x3 − 2x2 y 2 z 4 + 16x2 yz 2 + 18x2 2. 3(x − y )2 − x + y − 2 3. a6n − 64b6n 4. (pq − r)(3pq + 2r) + (p2 q 2 − r2 ) 5. s4 + 2s2 t2 + 9t4 6. s4 − 10s2 t2 + 9t4 7. 6x4 − 7x3 − 4x2 + 7x − 2 II. Simplify the following expressions: Consider all “radicands” as positive and all divisors as non-zero. 3x2 − 1 x+2 3x 1. −2 + 2x − 2 x − 2x + 1 4 − 12x + 12x2 − 4x3 2. (22 − 4−3 )−2 3. (3c2n − 2cn + 4) · (cn+1 − cn−1 ) n2 n + 2 − 3 ( n + m −2 ) −1 2 m · 4. m 2 n +n−6 1 − n2 m − 2 m 5. 2x4 − 3x2 + 6x − 5 ÷ x2 − 3 6. 2 5 a8 16b−4 −3 2 125b6 64a−9 2 3 ...
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This note was uploaded on 11/09/2011 for the course MATH 17 taught by Professor Aaronjamesporlante during the Summer '11 term at University of the Philippines Diliman.

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