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Luda [366]
3 years ago
6

How would you work out this equation? 4x+3y=-23 -2x-3y=25

Mathematics
1 answer:
tigry1 [53]3 years ago
7 0
You need to move your contents e.I. 3,4,5 and your variables e.I.2x, 5y, 2z first
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Factor the trinomial step by step & explain 2x^2+ 5x + 3
Colt1911 [192]

Answer:

One way to factor equation is to find the zeros. Its obvious that x=-1 is solution for this. So one factor is (x+1)

the next factor should include 2x at first (because we have 2x^2 in the equation which can not be made any other way)

Let's suppose the factor is (x+1)(2x+b)

Since we do not know what is b open the brackets 2x^2+bx+2x+b. If this is equal to 2x^2+5x+3 then b=3. We are left with (x+1)(2x+3)=2(x+1)(x+3/2)

Would go for other shorter solutions, but they require some deeper understanding like Horner's scheme,Fermat's Theorem or even deeper which I assume You will not understand)

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3 years ago
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Answer:

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So 3/5 will be - 5/3

Answer:

y = - 5 / 3x + 2

3 0
3 years ago
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Dovator [93]

Answer:

21.333 miles per gallon

Step-by-step explanation:

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An item is regularly priced at $40 . Milan bought it at a discount of 45% off the regular price. How much did Milan pay?
maw [93]
45%=.45
40*.45=18
40-18=22
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