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Make Sense? In Exercises 108—111, determine whether each statement makes sense or does not make sense, and explain your reasoning.
108. It takes me more steps to find
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Chapter 7 Solutions
MyLab Math with Pearson eText -- 24 Month Standalone Access Card -- for Introductory Algebra for College Students with Integrated Review
- 5 (x+14)=85arrow_forwardIn Exercises 83–90, perform the indicated operation or operations. 83. (3x + 4y)? - (3x – 4y) 84. (5x + 2y) - (5x – 2y) 85. (5x – 7)(3x – 2) – (4x – 5)(6x – 1) 86. (3x + 5)(2x - 9) - (7x – 2)(x – 1) 87. (2x + 5)(2r - 5)(4x? + 25) 88. (3x + 4)(3x – 4)(9x² + 16) (2x – 7)5 89. (2x – 7) (5x – 3)6 90. (5x – 3)4arrow_forwardMake Sense? In Exercises 135–138, determine whether each statement makes sense or does not make sense, and explain your reasoning. 135. I use the same ideas to multiply (V2 + 5) (V2 + 4) that I did to find the binomial product (x + 5)(x + 4). 136. I used a special-product formula and simplified as follows: (V2 + V5)? = 2 + 5 = 7. 137. In some cases when I multiply a square root expression and its conjugate, the simplified product contains a radical. 138. I use the fact that 1 is the multiplicative identity to both rationalize denominators and rewrite rational expressions with a common denominator.arrow_forward
- Differentiate (x2 + x + 1)4arrow_forward4.3.PS-17 Question Help Explain whether 11t- 4t is equivalent to 4t - 11t. Support your answer by evaluating the expressions for t= 2. The expression 11t - 4t in 11t - 4t belongs to the equivalent to 4t- 11t because the negative sig is not isarrow_forwardPlease explain how to do this 13arrow_forward
- Make Sense? In Exercises 135–138, determine whether each statement makes sense or does not make sense, and explain your reasoning. 135. Knowing the difference between factors and terms is important: In (3x?y)“, I can distribute the exponent 2 on each factor, but in (3x² + y)', I cannot do the same thing on each term. 136. I used the FOIL method to find the product of x + 5 and x + 2x + 1. 137. Instead of using the formula for the square of a binomial sum, I prefer to write the binomial sum twice and then apply the FOIL method. 138. Special-product formulas have patterns that make their multiplications quicker than using the FOIL method.arrow_forwardWhen I evaluate (2x - k), I get a +bx+cx² + dx³. What are the values of a, b, c, d? Fill them in below. a = b = C = d =arrow_forwardFind a - b + c.arrow_forward
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