3 years ago

Which two values of x are roots of the polynomial below? 4x2-6x+1

Mathematics

1 answer:

viva [34]3 years ago

6 0

Answer:

4x2-6x+1

∆=√-6^2-4×1×4

∆=√36-16=√20

∆=2√5

root1=(6+√20)/8

root2=(6-√20)/8

You might be interested in

At soccer practice, for every 5 minutes that Bob runs, e spends 20 minutes practicing dribbling. If Bob keeps the same ratio and

Kitty [74]

5/20=x/36

1/4=x/36

x=9

9 minutes.

8 0

4 years ago

What is the explicit rule for this geometric sequence?<br> a1=2/3;an=9. An-1

Mazyrski [523]

THE ANSWER IS B BECAUSE I TOOK THIS QUIZ ALREADY

4 0

2 years ago

I need the value of x. 10x + 4 - 2x = 6x + 9 + 7

erastova [34]

Answer:

x = 6

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Zack delivers mail for the post office. Every day he walks a 7-mile route. How many miles does Zack walk in one month if he work

GalinKa [24]

If Zack walks a 7-mile route every day, and he goes on for 22 days, the answer is 154, because you are multiplying 7 by 22 (7 x 22 = 154).

7 0

3 years ago

If x / 2y = 0.4 , A / 5B = 0.25 Then A + y / 5 =…....

shusha [124]

Answer:

$\frac{x}{2y} = \frac{4}{10} \\ 8y = 10x \\ y = \frac{10x}{8} - - - - - 1 \\ \\ \frac{a}{5b} = \frac{25}{100} \\ \frac{a}{5b} = \frac{1}{4} \\ 4a = 5b \\ a = \frac{5b}{4} - - - 2 \\ \\ so \: \: \frac{a + y}{5} \\ = (a + y) \times \frac{1}{5} \\ = ( \frac{5b}{4} + \frac{5x}{4} ) \times \frac{1}{5} \\ = \frac{5b + 5x}{4} \times \frac{1}{5} \\ = \frac{5(b + x)}{4} \times \frac{1}{5} \\ = \frac{b + x}{4} \\ \\ so \: \: \: \frac{a + y}{5} = \frac{b + x}{4}$

6 0

3 years ago