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Operations with Monomials Adding/Subtracting Monomials Multiplying Monomials RULE: When you add monomials, you must have “like” terms. RULE: When you multiply monomials, you __________________ You __________________________ coefficients and coefficients and ________________ exponents. ___________________ exponents. Example: 1) 3x2 + 4x2 + 5x _______________________ Example: 1) (3x)(4x)(5x)(- 2x2) ________________________ 2) 4xy3 + 5x2y3 – 7x2y3 ______________________ 2) (4xy)(-2xy3)(3x2y3) _________________________ 3) x2 + 3x – 5 + x2 – 7x – 2 _______________________ 3) (7ab)(-5a2b3) ______________________________ Power to Power Monomials RULE: When you raise monomials to a power, you _________________ the coefficients to a ___________________ and _________________ exponents. Dividing Monomials RULE: When you divide monomials you ___________ coefficients and ____________ exponents. Negative Exponents: NEVER, EVER, EVER LEAVE A NEGATIVE EXPONENT RULE: 3 2) (-2x2y3)2 __________________________ 1) 14 x2 ________________ 7x Think of it as “canceling like terms” 3) (-3a2y4)3 ____________________________ 2) 1) (3x) _______________________ 2 x 2 y 3 _____________ 8 x 4 y 5 2x3 3) 4 6y 3 ____________ If an exponent is negative in the numerator, you move it to the _________________ and make it positive. If an exponent is negative in the denominator, you move it to the ______________________ and make it positive. If the exponent is outside a set of parenthesis – flip the fraction and make the exponent positive Operations with Monomials Putting it all together!!!! A monomial expression is in simplified form when: 1) There are no powers of powers, 2) Each base appears only once, 3) All fractions are in simplest form, and 4) There are NO NEGATIVE EXPONENTS!! 1) v 3 2) 2 w (2 x 3 y 4 )(3x 2 y 5 ) ( x 2 y 3 )(12 x 5 y 6 ) _______________________ 3a 3b 2 3) 16a 2 b 3 4) (a 3b 3 )( ab) 2 ___________________________ ____________________________ _________________________________ 5) (2r s ) (3rs ) 30a 2 b 6 6) 60a 6 b 8 (a 2 b 3 c 4 )(6ab 2 ) 2 7) (4abc 3 ) 2 (a 2 b 2 c) x2 8) 3 3y ________________ _________________ ___________________ 2 3 3 3x 9) 2y 2 1 3 3x 4 10) 2 6y ______________ 1 2x 2 y 5 11) 4 7 3x y _________________ 3 _______________________ 3 _________________