Provide an appropriate response.Use the FOIL method to show that (2x + 4)(x - 5) is 2x2 - 6x - 20. If you were asked to completely factor 2x2 - 6x - 20, why would it be incorrect to give (2x + 4)(x - 5) as your answer?
What will be an ideal response?
The factor of 2 should be factored out.
Mathematics
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Factor completely. If the polynomial cannot be factored, say it is prime.x2 + 2x + 1
A. (x + 1)2 B. (x + 1)(x - 1) C. (x + 2)(x - 2) D. (x - 1)2
Mathematics
Solve the number problem by finding the value of the unknown number.The sum of 4 and four times a number is 
.
A. 
B. 0
C. 
D. 
Mathematics
Write a matrix equation equivalent to the system of equations.3x + 6z = 18 9y + 5z = 647x + 8y + 4z = 70
A. 
=
B.
  =  |
C.
= 
D.
=
Mathematics
Round to the indicated place.According to a study, life expectancy has increased by 35.45 years over the past century. Round this decimal to the nearest year.
A. 35.45 B. 35.5 C. 40 D. 35
Mathematics