Reference no: EM131254075
1. Answer each of the questions below:
a) Write the number in scientific notation: 127,436,516
b) Write the number in scientific notation: 0.000007451
c) Write the number in standard notation, without exponents: 4079 x 105
d) Write the number in standard notation, without exponents: 3.012 x 10-4
e) Simplify:3-2 - 6-1 -70
2) Simplify. Write the answer using positive exponents only.
(63x^(-5) y^7)/(54xy^(-4) )
3) Simplify. Write the answer using positive exponents only.
((4a^7)/(5b^(-2) ))^3
4) Simplify. Write the answer using positive exponents only.
(14x^8 y^9)/(20x^3 y)÷(35x^11 y^18)/(8x^3 y^9 )
5) Perform the indicated operations and simplify: (15y2 - 9) + (3y2 - 8) - (4 - 11y2 )
6) Perform the indicated operations and simplify your answer: (2x2 - 7x + 3) - (4x2 -11x - 12)
7) Perform the indicated operations and simplify your answer: (2x - 9) (5x2 - 4x - 7)
8) Factor completely and show the check by re-multiplication. If the polynomial is not factorable, write "prime." 12x3 -20x2 - 8x
9) Factor completely and show the check by re-multiplication. If the polynomial is not factorable, write "prime." 42x2 - 23x - 5
10) Solve the equation by the method of factoring: 4x3 + 6x2 = 70x
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