3 years ago

Factor out the greatest common factor. 2s4 - 4s2

Mathematics

1 answer:

mamaluj [8]3 years ago

5 0

Greatest common factor in this case is 2s^2. The resulting polynomial would be 2s^2(s^2-2)

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Sandra spent $32 for a purse and buys aCD for $15. Write an expression to represent this problem

Serjik [45]

Answer:

x - ($32 + $15); or x - $32 + $15

Step-by-step explanation:

Spending on the purse and a CD means less cash then the starting amount, x.

8 0

4 years ago

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(X-3) (2x-3)= (x-3) (x+1) solve for x

yanalaym [24]

$(x - 3)(2x - 3) = (x - 3)(x + 1)$

Do the multiplication both sides,

$2 {x}^{2} - 9x + 9 = {x}^{2} - 2x - 3$

Arrange the terms to LHS according to their variables,

$2 {x}^{2} - {x}^{2} - 9x + 2x + 9 - 3 = 0 \\ {x}^{2} - 7x + 6 = 0$

Factorise this polynomial

${x}^{2} - 6x - 6x + 6 = 0 \\ x(x - 6) - (x - 6) = 0 \\ (x - 1)(x - 6) = 0$

So what we notice here is when you're multiplying two numbers you're getting 0 as answer.

So one of them must be 0.

If (x-1) is 0
then x = 1

similarly,

x-6=0

then, x= 6.

So the possible values of x are 1 and 6.

7 0

3 years ago

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A number is 6 less than its square. find all such numbers?

cestrela7 [59]

Hello There!

2² - 6 = -2
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Etc....the list goes on

Hope This Helps You!
Good Luck :)

- Hannah ❤

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Kelly has made 16 out of 25 free throws. the probability that she will make her next free throw is 64%. Is this an Experimental

Anna71 [15]

Well percents are probability, and probability is similar to theory. So i think its theoritical probability.

Hope this helps.