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3 years ago

What is the solution of the inequality 2x - 9<7?

Mathematics

1 answer:

notka56 [123]3 years ago

5 0

I think it is d I think not sure tho

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Please help!<br>what polynomial must be added to <br>−5x^3 + 4x − 3 so that the sum is x^2 − x − 1?

lakkis [162]

<h3><u>Solution:- </u></h3>

Let the number to be added be A

Now,

$\begin{gathered}\implies\quad \sf −5x^3 + 4x − 3 + A = x^2 − x − 1 \\\end{gathered}$

Transposing (−5x³+ 4x − 3 ) to other side-

$\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 -( −5x^3 + 4x − 3) \\\end{gathered}$

Remember if there is a -ve sign before a bracket the signs of whole of the terms changes on opening bracket

$\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 + 5x^3 - 4x + 3\\\end{gathered}$

Putting like terms together -

$\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 - x -4x +3 -1 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 -5x +2 \\\end{gathered}$

$\longrightarrow$ Therefore, 5x³+x²-5x +2 should be added to −5x³+ 4x − 3 to get x²− x − 1

6 0

3 years ago

AB<br> C D<br> E<br> F +3<br> x2 -3x -18

madam [21]

Answer:

(x + 3) ( x - 6)

Step-by-step explanation:

x² - 3x - 18

x² - 6x + 3x - 18

x(x - 6) + 3(x - 6)

(x + 3) ( x - 6)

5 0

3 years ago

Read 2 more answers

HELPP ME PLSS!!!!!!!

vodka [1.7K]

Can you post it again it is black

8 0

2 years ago

5+3/67=<img src="https://tex.z-dn.net/?f=%5Cleq%20%5Csqrt%5Bn%5D%7Bx%7D%20%5Cfrac%7Bx%7D%7By%7D" id="TexFormula1" title="\leq \s

miss Akunina [59]

Answer:

is this a question

Step-by-step explanation:

(　ﾟДﾟ)＜!!

6 0

3 years ago

Complete the square. Fill in the number that makes the polynomial a perfect-square

FromTheMoon [43]

=s(s-26) is 4 step s^2-26s the polynomial of a must be 4 since the known number we don’t know I guess it’s 4

4 0

3 years ago