What number is represented by + + 2 if = −2? Polynomial Expression: An expression that can have constants, variables and exponents, that can be combined using addition, subtraction, multiplication and division, but: no division by a variable. • a variable's exponents can only be 0,1,2,3,... etc. • it can't have an infinite number of terms. • Exercise 4 Find each sum or difference by combining the parts that are alike. 417 + 231 = _____ hundreds + _____ tens + _____ ones + _____ hundreds + _____ tens + _____ ones = _____ hundreds + _____ tens + _____ ones + + 7) + + + 1) + 8) + + 7) − − − + + 12) (5 + + – − − + 1) + 8) + 2) − −
What number is represented by + + 2 if = −2? Polynomial Expression: An expression that can have constants, variables and exponents, that can be combined using addition, subtraction, multiplication and division, but: • no division by a variable. • a variable's exponents can only be 0,1,2,3,... etc. • it can't have an infinite number of terms. Exercise 4 Find each sum or difference by combining the parts that are alike. 417 + 231 = _____ hundreds + _____ tens + _____ ones + _____ hundreds + _____ tens + _____ ones = _____ hundreds + _____ tens + _____ ones + + 7) + + + 1) − + 8) − + + − 7) + – + 12) (5 − − + + + 1) + − 8) − + 2)
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