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trasher [3.6K]
3 years ago
14

Subtract the sum of a^2 − 2ab + b^2 and 2a^2 + 2ab + b^2 from the sum of a^2 − b^2 and a^2 + ab + 3b^2

Mathematics
1 answer:
solniwko [45]3 years ago
5 0

Answer:

-a^2 + ab

Step-by-step explanation:

(a^2 - 2ab +b^2) + (2a^2 + 2ab + b2) = 3a^2 + 2b^2

(a^2 - b^2) + (a^2 + ab + 3b^2) = 2a^2 + 2b^2 + ab

subtract the first part from the second part:

(2a^2 + 2b^2 + ab) - (3a^2 + 2b^2) =    -a^2 + ab

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61 ones times 1/10 =?<br> or = 61 ones*1/10=?
aniked [119]
61 x (1/10)=

Or 61 x .1

The answer is 6.1
8 0
3 years ago
How do you simplify this?<br>x²y+xy² / y²+2/5 × xy​​​
polet [3.4K]

\huge \boxed{\mathbb{QUESTION} \downarrow}

  • How do you simplify this?
  • x²y+xy² / y²+2/5 × xy

\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}

\sf\frac{  { x  }^{ 2  }  y+x { y  }^{ 2  }    }{  { y  }^{ 2  }  + \frac{ 2  }{ 5  }   \times  xy  } \\

Factor the expressions that are not already factored.

_____

<u>How </u><u>to</u><u> factorise</u><u> </u><u>:</u><u>-</u>

<u>NUMERATOR</u> \downarrow

\sf \: x ^ { 2 } y + x y ^ { 2 }

Factor out xy.

\sf \: xy\left(x+y\right)

<u>DENOMINATOR</u> \downarrow

\sf{ y  }^{ 2  }  + \frac{ 2  }{ 5  }   \times  xy \\

Factor out 1/5.

\sf \: {\frac{1}{5}y\left(2x+5y\right)}  \\

_____

Continuing...

\sf\frac{xy\left(x+y\right)}{\frac{1}{5}y\left(2x+5y\right)}  \\

Cancel out y in both the numerator and denominator.

\sf\frac{x\left(x+y\right)}{\frac{1}{5}\left(2x+5y\right)}  \\

Expand the expression.

\sf\frac{x^{2}+xy}{\frac{2}{5}x+y}  \\

This can further simplified to as \downarrow

=    \boxed{\boxed{\bf\frac{5x\left(x  +y\right)}{2x+5y}}}

3 0
3 years ago
What are the zeros of the graphed function y = (x + 3)(x + 5)? –5 and –3 5 and 3 –8 and 5 0 and 5
Sati [7]

Answer:

Answers are:  (x+3)(x+5) = 0

So first zero:  x+3 = 0  so x = -3

Second zero: x+5 = 0 so x = -5

so zeros are: x = -5 and -3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Someone please help for a brainly
ivolga24 [154]

Answer:

it's 3 it's it

Step-by-step explanation:

trust me okay I promise dude I a easy yes yes 3

6 0
3 years ago
NEED ANSWER ASAP!! TYYY SO MUCH IN ADVANCE
Kipish [7]

Answer:

24.84

Step-by-step explanation:

use Pythagoras theorem

h=√p²+b² = √(19)²+(16)² = √617 =24.84

4 0
3 years ago
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