Jacob estimates the square root of 50 in the following way:

√75 (both numbers repeating) = 3√25 (25 repeating) = 3 * 5 = 15

Explain why her reasoning is incorrect.

Estimate the square root of 75 to the nearest thousandths without using your calculator. Show your work.

Note: If you use a calculator you will get the wrong answer.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

first one because it can't have a fraction in it

step-by-step explanation:

answer:   c ?

step-by-step explanation: