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### Grade 7 - Mathematics2.13 Value of an Expression - IV

 Example: Find the value of an expression 7x3 + 9x + 7, when x=2. Solution: Substituting the value of x in the given equation, 7.23 + 9.2 + 7 7.2.2.2 + 18 + 7 = 56 + 18 + 7 =81 Therefore the value of the given equation is 81. Directions: Solve the following problems and show your work. Also write at least 10 examples of your own.
 Q 1: Find the value of the expression x3+x+3, when x=5.Answer: Q 2: Find the value of the expression 3x3+7x+7, when x=2.Answer: Q 3: Find the value of the expression x3+6x+3, when x=4.Answer: Q 4: Find the value of the expression 7x3+6x+3, when x=0.Answer: Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!

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