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joja [24]
3 years ago
15

Four times the sum of three consecutive odd integers is seven hundred sixty-five less than three times the product of the larger

two numbers. What are the three integers?
this was my initial answer to the question:
(x-2), x, (x+2)

4((x+2) + x+ (x-2))=3((x+2)(x)) – 765

4(3x)=3x2+6x-765

4x=x2+2x-255

X2-2x-255=0

X2-17x+15x-255=0

X(x-17)+15(x-17)=0

(x+15)(x-17)=0

(x-17)=0

X=17
however it was sent back to me with:
'You should end up with 2 values for x. You then need to write the two sets of three integers.'

I am unsure as to what i am supposed to do with this now :/
Thanks
Mathematics
1 answer:
Andre45 [30]3 years ago
7 0

Answer:

The consecutive odd integers are (15, 17, 19) or (-17, -15, -13).

Step-by-step explanation:

Let the three consecutive odd integers be: x-2,x\ and \ x+2

The condition given is:

4[x-2+x+x+2]=3x(x+2)-765

Solve this for <em>x</em> as follows:

4[x-2+x+x+2]=3x(x+2)-765\\4\times 3x=3x^{2}+6x-765\\3x^{2}-6x-765=0\\x^{2}-2x-255=0\\x^{2}-17x+15x-255=0\\x(x-17)+15(x-17)=0\\(x-17)(x+15)=0

  • If (x-17)=0 then the value of <em>x</em> is 17.

       The odd numbers are:

          x-2=17-2=15\\x=17\\x+2=17+2=19

  • If (x+15)=0 then the value of <em>x</em> is -15.

       The odd numbers are:

         x-2=-15-2=-17\\x=-15\\x+2=-15+2=-13

Thus, the consecutive odd integers are (15, 17, 19) or (-17, -15, -13).

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Answer:

no solution

Step-by-step explanation:

1/2(2-4x)+2x=13

We simplify the equation to the form, which is simple to understand

1/2(2-4x)+2x=13

Simplifying:

+ 0.5*(2-4x)+2x=13

Reorder the terms in parentheses

+(+1-2x)+2x=13

Remove unnecessary parentheses

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We move all terms containing x to the left and all other terms to the right.

-2x+2x=+13-1

We simplify left and right side of the equation.

0x=+12

0=12

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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Paraphin [41]

Answer:

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Step-by-step explanation:

Let n,m be two natural numbers.

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