Unit 1 Lesson 7: Exercise 4
Simplify the following algebraic expressions
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Question 1 of 101. Question
1) (9x – 8)(9x + 8)
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= x2 –
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Question 2 of 102. Question
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= y2 + y +
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Question 3 of 103. Question
3) (5x – 4)2
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= x2 – x +
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Question 4 of 104. Question
4) x3(2x2 + 5x3)
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= 2x + x
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Question 5 of 105. Question
5) 5(a + 2b) + 3(2a – 3b)
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= a +
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Question 6 of 106. Question
6) 2y(3 + 4y) + y(5y – 1)
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= y + y2
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Question 7 of 107. Question
7) (x + 4)(x – 1)
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= 2 + x –
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Question 8 of 108. Question
8) (2x + 3)(3x + 1)
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= x2 + x +
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Question 9 of 109. Question
9) (4x – 1)(3x + 2)
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= y2 + x –
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Question 10 of 1010. Question
10) (1 – 3k)(3 + 2k)
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= – k – k2
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