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Nesterboy [21]
3 years ago
5

Solve the equation.

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
7 0
6=2x+16-5x
6=(2x-5x)+16
6-16=2x-5x
-10=-3x
X=10/3
Natasha2012 [34]3 years ago
4 0
I hope this helps you

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Find the product of following:(i) (x+3) (x+2) (ii) (2x-1) (2x-7)​
Inga [223]

Part (i)

<h3>Answer:  x^2 + 5x + 6</h3>

-----------------

Work Shown:

(x+3)(x+2)

y(x+2) ..... Let y = x+3

y*x + y*2 ... distribute

x(y) + 2(y)

x(x+3) + 2(x+3) .... plug in y = x+3

x*x + x*3 + 2*x + 2*3 ... distribute

x^2 + 3x + 2x + 6

x^2 + 5x + 6

=====================================================

Part (ii)

<h3>Answer:  4x^2 - 16x + 7</h3>

-----------------

Work Shown:

We could follow the same set of steps as shown back in part (i), but I'll show a different approach. Feel free to use the method I used back in part (i) if the visual approach doesn't make sense.

The diagram below is a visual way to organize all the terms. Many textbooks refer to it as "the box method" which helps multiply out any two algebraic expressions.

Each inner cell is found by multiplying the corresponding outer terms. For instance, in the upper left corner we have 2x*2x = 4x^2. The other cells are filled out the same way.

The terms in those four inner cells (gray boxes) are:

  • 4x^2
  • -14x
  • -2x
  • 7

The like terms here are -14x and -2x which combine to -16x, since -14+(-2) = -16.

We end up with the answer 4x^2-16x+7

8 0
3 years ago
What is the equation 1.45x=0
Sergio [31]
1.45X=0
1.45 1.45


U divide 1.45 in each side 1.45 divided by 1.45 =x
And 1.45 divided by 0 is of course 0 cuz anything divided or
Multiplied by 0 Is always 0
Ur answer is X=1.35
3 0
3 years ago
A right triangle has a hypotenuse of length 9 inches. If one angle is 35 degrees, find the length of each leg.
Montano1993 [528]
<span>90 + 35 = 125.
180 -125 = 55 degrees.
 

4.59^2 + 6.55^2 = 8^2
21.1 + 42.9= 64 inches</span>
7 0
3 years ago
How do you simplify this expression? -12 divided by 3•(-8+(-4)^2-6)+2
stepan [7]

I good accumulator to use would be symbolab.com

The answer would be 3072/5629

5 0
3 years ago
the figure below are squares. Find an expression for the area of each shaded region. Write your answer in standard form.
zheka24 [161]
(X+3)^2 -(X)^2
(X^2+6x+9) - X^2
6x+9

6 0
3 years ago
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