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Valentin [98]
3 years ago
15

Simplify. 7x² - x + 9 + 6x² + 5x - 10 ___________ Will give brainliest.

Mathematics
2 answers:
crimeas [40]3 years ago
5 0

Answer:

Its 13X2<this 2 is little +4x-1

Step-by-step explanation:

Ira Lisetskai [31]3 years ago
3 0

Answer:

13²+4−1

Step-by-step explanation:

<em><u>hope it helps</u></em>

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Step-by-step explanation:

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Is math important in real life?
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I am in need of help
kvv77 [185]
CAD= BAD
AD=AD( the same side of two angles).
8 0
2 years ago
I need the answer fore both plsss
grandymaker [24]

Answer:  6i) 6a² - 2ab

               6ii) -2b³

               6iii) b³ + 7b² - 49b

<u>Step-by-step explanation:</u>

6i)   (a + b)(5a - 3b)             +    (a - 3b)(a - b)

=    5a² - 3ab + 5ab - 3b²   +    a² - ab - 3ab + 3b²

=    5a² + 2ab - 3b²             +   a² - 4ab + 3b²

= 6a² - 2ab

6ii)    (a - b)(a² + b² + ab)              -  (a + b)(a² + b² - ab)

=   a³ + ab² + a²b - ab² - a²b - b³ -  (a³ + ab² - a²b -ab² + a²b + b³)

=   a³ - b³                                      -  (a³ + b³)

=   a³ - b³                                      - a³ - b³

= -2b³

6iii) (b² - 49)(b + 7)             +     343

=     b³ + 7b² - 49b - 343    +    343

=     b³ + 7b² - 49b

You are allowed a maximum of 3 questions.

Please post #7 on a different question.

5 0
3 years ago
Pls help the question is here (12points) DUE TO DAY
scZoUnD [109]

Answer:

\bf Area= 90\;in

Step-by-step explanation:

<u>Area of ABCD = L * W</u>

\bf 6\times 12

\bf 72 \;in^2

<u>Area of EFGC:- L * W</u>

\bf 6 \times 3

\bf 18\; in^2

<u>Now, the area of the combind rectangles:-</u>

ABCD + EFGC

\bf 72+18

\boxed{\bf 90\; in}

5 0
2 years ago
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