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jolli1 [7]
3 years ago
7

What is the simplified form of this expression? (-3x2 + 2x − 4) + (4x2 + 5x + 9)

Mathematics
2 answers:
olga2289 [7]3 years ago
3 0

Answer:

<em><u>I</u></em><em><u> </u></em><em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

olya-2409 [2.1K]3 years ago
3 0

Answer:

\large \boxed{\sf \  \  x^2 + 7x + 5 \ \ }

Step-by-step explanation:

\mathrm{\sf (-3x^2  + 2x -4) + (4x^2  + 5x + 9)}

Remove brackets.

\large{\sf -3x^2  + 2x -4 + 4x^2  + 5x + 9}

Group like terms.

\large{\sf -3x^2 + 4x^2 + 2x  + 5x + 9  -4}

Combine like terms.

\large{\sf x^2 + 7x + 5}

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In an isosceles triangles the sides that are congruent form two congruent angles...you should be given one of those angle measures or the other one...if you are given one of the angle measure formed by the congruent side you know the one opposite it is the same and you know all the measures of angles in a triangle = 180 so you should be able to find them all
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Juli2301 [7.4K]

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Read 2 more answers
Question number 3 pls
marissa [1.9K]
Factoring f(x) would give a factor (x-1-2i), so you can divide f(x) by this, leaving (x-3)(x+4)(x-1+2i), so the other roots are:

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4 0
3 years ago
Ben, Cam, and Justin are lumberjacks. The number of trees they chop down is given by b+2c+3jb+2c+3j where b is the number of hou
monitta

Answer:

748 trees  PLEASE GIVE BRAINLIEST

Step-by-step explanation:

b + 2c + 3jb + 2c + 3j =

88 + 2(33) + 3(44)(88) + 2(33) + 3(44) =

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5 0
3 years ago
Plz help.............. radius is 10 inch​
yaroslaw [1]

Answer:

314 in²

Step-by-step explanation:

The formula for the area of a circle is pi*r² or pi (3.14...)* radius²(squared).

If you plug in the radius given into the equation, you get 3.14*10²  you can then solve this using systems of equations.

3.14*10²

10² = 10*10

3.14*(10*10)

10*10= 100

3.14*100

3.14*100= 314

6 0
3 years ago
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