Calculus

Those aren't functions. If you mean f(x) = x + 1 and f(x) = 3x - 2, the domain is the the set of all real numbers, R. I, of course, am assuming you haven't been introduced to the complex number plane, so I'm ignoring those.

You can only solve the equation if both sides are shown. Assuming that the expression is made equal to 0, then x can be found by factorising:

x2 + 3x - 4 = 0

(x+4)(x-1) = 0

either x+4 = 0, therefore x=-4

or x-1 = 0, therefore x = 1

he invented calculus but was accused of taking credit from Newton

They are both parallel because the slope or gradient is the same but the y intercept is different.

164 metres x 100 cm = 16400 cm

1 inch = 2.54 cm

16400 divided by 2.54 = 6456.6929 inchres

√(5a) + 2√(80a) - 7√(125a)

first square the whole equation

[√(5a)]2 + [2√(80a)]2 - [7√(125a)]2

when you square a sqrt the sqrt goes away

5a + 4 * 80a - 49 * 125a

dont forget to square the numbers outside the sqrts

5a + 320a - 6125a

just add and subtract

-5800a is your answer

cerrar la session

the answer is 42

Use algebra to solve for x.

2x-4=5x+8. Subtract 5x from each side.

-3x-4=8. Add 4 to both sides.

-3x=12. Divide both sides by -3.

x=-4

x=-24.

x+56=8-x therefore

x+56-8=x and

x+x+56-8=0. to make things easier,

2x+48=0 and you get

2x=-48. divide -48 by 2 and

x=-24.

You need to know what is the relationship between x and y. Are they proportional? Inversely proportional? Several other options also exist.

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-5x+1 = 6x

-5x-6x = -1

-11x = -1

x = 1/11

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it is 7-4

There are no solutions to this quadratic equation because the discriminant is less than zero.

It could be one of several things:

One is that the symbol "x" is used to indicate a binary operation other than conventional multiplication.

If multiplication IS in its "normal" form, it is possible that calculations are not in base 10. In base 7, for example, the answer would be 26.0

Or that calculations are modulo some number smaller than 20. Modulo 9, the answer would be 2.0

Or it could be the effect of rounding. For example 3.96 * 4.96 = 19.6416 so that rounded to 1 decimal place, this becomes 4.0 x 5.0 = 19.6 - not 20.0

It is very likely that there are other properties or scenarios.

0.5*(632-189) = 1890 diagonals

26x-4 = 25

+4 +4

26x = 29

x= 29/26 or 1.115...

Draw a straight line through the origin, slanting up at 45 degrees.

2 and 1/12 minus 1 and 1/3 = 3/4 or 0.75

(0 x 69) 9

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There is no symbol before the 100.

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