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### Grade 7 - Mathematics4.28 Simplification - I

 Example: 8x3+7x2-9x+2, find the value of given expression when x=1. Solution: 8(1)3+7(1)2-9(1)+2. = 8.1+7.1-9+2 = 8+7-9+2 = 8. Directions: Substitute the x value and find the value of expression. Also write atleast ten examples of your own.
 Q 1: 2x3-3x2-3x+12, find the value of given expression when x=4.78868280 Q 2: 9x3-6x2+8x+9, find the value of given expression when x=2.43404641 Q 3: 5x3-8x2+5x+9, find the value of given expression when x=2.27232526 Q 4: 2x+9x+5x+2, find the value of given expression when x=1.-18-191918 Q 5: 6x3-6x2+7x-8, find the value of given expression when x=2.30152520 Q 6: 2x3+8x2-9x-20, find the value of given expression when x=3.76787579 Q 7: 8x3-4x2-8x-9, find the value of given expression when x=1.13-1315-15 Q 8: 9x3+9x2+9x+9, find the value of given expression when x=0.6839 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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