Algebra UNIT Required Skills: MIDTERM EXAM REVIEW 2 ALGEBRAIC EXPRESSIONS (GREEN NOTES) 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) Evaluate powers of numbers. Write algebraic expressions. Write verbal expressions. Write an equation from a verbal sentence. Write a verbal sentence from an equation. Perform the order of operations. Evaluate expressions. Identify the Distributive Property. Apply the Distributive Property to simplify expressions. Identify the Commutative Property for addition and multiplication. 11) Identify the Associative Property for addition and multiplication. 12) Apply the Commutative and Associative Properties to simplify expressions. 13) To add and subtract radical expressions. Simplify each of the following expressions. 1) 57+1 2) 3) 9 – 14 2 + 3 4 4) MCD/LPG/MPH 1/13 27 3 - 5 5·6+2 12 - 4 1 Algebra 5) 6 5 + 42 – 32 8 6) 7 + 8 4 – 3 23 Evaluate each of the following expressions. 7) 3a - 2 + 5b if a = 6 and b = 2 8) 9) 7x + 4 + 5y if x = 2 and y = 4 10) 4a - 3b if a = -5, b = 2 11) -7r + 6u - 5t if r = 3,u = -3, t = -2 5a - 4b + 9 if a = 7 and b = 2 12) -3x - 2y + 4z if x= 2, y= -1, z= -5 Simplify each of the following expressions. 13) 6 (3x + 2) MCD/LPG/MPH 1/13 14) ( 4k - 12) 21 2 Algebra 15) (4y - 3) 6 16) 4b + 2 (3b + 1) + 7 17) 2x + 5 (7 + 3x) + x 18) (7 + 4r) 2 + (9 + 5r) 3 19) -6a + 2 + 2b - 8 - 3a - 9b 20) -7c - 8b - 4c + 5a + 5b - 2a 21) -6a - 11b - 2c + 14a + 9b + 8c 22) -4b - 5a - 9 - 2a + 4b 23) 4x – 7 (5 + 2x) 24) 6 – 2 (8 - 7x) 25) 5y – 3 (6 - 4y) 26) 2a – 4 (3a + 1) – 7 27) 9 (4x + 8) + 6 (2x - 7) 28) 2 (3w - 4) – 8 (w – 5) MCD/LPG/MPH 1/13 3 Algebra 29) -3 (8 – n) – (-4n + 7) 30) 6 (-3x + 5) – (8 – 7x) Simplify each of the radical expressions. 31) 5 6 - 18 6 34) 32) 7 5 - 4 5 + 5 27 - 75 36) 2 54 - 7 90 33) 8 2 - 6 7 - 10 2 35) 20 + 45 37) 150 - 3 24 - 7 8 Write an algebraic expression for each verbal expression. 38) 14 decreased by twice a number 39) 4 less than 6 times a number 40) 3 more than 8 times a number 41) 18 increased by four times a number MCD/LPG/MPH 1/13 4 Algebra 42) the product of a number and and another number cubed 43) the quotient of 8 and a number squared Write a verbal expression for each algebraic expression. 44) 6n4 45) 23 – h 46) 5n + 12 47) 48) 17xy 49) 3a2 – d3 a 19 Write an equation for each verbal sentence. 50) Three times a number decreased by 17 is 22. 51) 8 less than the quotient of z and 6 is 9. 52) The square of x increased by twice y is the same as 4. 53) 11 more than a number cubed equals the square of the number. MCD/LPG/MPH 1/13 5 Algebra Write a verbal sentence for each equation. 54) 12 – 7d = 11 55) a + 4 = -8a 19 56) 3a2 – d3 = 6a 57) 5xy – 9 = 11 MCD/LPG/MPH 1/13 6