What is the answer to x+y=3

Mathematics

2 answers:

Nadusha1986 [10]3 years ago

7 0

Answer:

(x+y)² =(x+y)(x+y) Then you FOIL (First, outer, inner, last)

(x+y)² =(x+y)(x+y) = xx + xy + xy + yy [and when you combine like terms] = x² + 2xy + y²

(x+y)3 = (x² + 2xy + y²)(x+y) Then you FOIL (First, outer, inner, last)

(x+y)3 = (x² + 2xy + y²)(x+y) = x2x +2xxy + xy2 + x2y + 2xyy + y2y [and when you combine like terms] = x3 + 3x2y+ 3xy2 + y3

Step-by-step explanation:

Alja [10]3 years ago

6 0

Answer:

x=−y+3

Step-by-step explanation:

You might be interested in

⅓(2x-4)+5=-⅔(x+1)<br><br><br>HALP

Kay [80]

$\frac{2}{3} x - \frac{4}{3} + 5 = \frac{ - 2}{3} x - \frac{2}{3 } \\ \frac{2}{3} x - \frac{11}{3} = - \frac{2}{3} x - \frac{2}{3} \\ 2x + 11 = - 2x - 2 \\ 4x = - 13 \\ x = \frac{ - 13}{4}$

6 0

3 years ago

Which expression is equivalent to 3 times 5 times 5 times 5 times 5 times 5 times 5? 15 Superscript 6 15 Superscript 7 3 (5) Sup

malfutka [58]

Answer:

<h2>3 (5) Superscript 6</h2>

Step-by-step explanation:

Given the expression $3*5*5*5*5*5*5$

In order to get the equivalent expression, first we must note the repetition of the value 5. Since the value of 5 is repeated 6 times during the multiplication, it can be written in indicinal form as shown;

$3*5^{6}$