2 years ago

Pls help and explain

Mathematics

1 answer:

grin007 [14]2 years ago

4 0

Answer:

Step-by-step explanation:

First distribute the 2x to get:

4x² + 10x

Then distribute the -5 to get:

-10x - 25

Then combine

4x² + 10x - 10x - 25

The 10x's will cancel leaving you:

4x² - 25

You might be interested in

The sum of 3 consecutive integers is 45. Which equation represents this?

cestrela7 [59]

Consecutive integers are 1 apart
they are
x,x+1,x+2
so it would be
x+x+1+x+2=45
B is answer

3 0

3 years ago

True or False

matrenka [14]

Answer:

for saken it is better to use ordinary calculator than cp because they have a big difference. That's all I can say

8 0

2 years ago

Line segment BA is tangent to the circle. A circle is shown. Secant D B and tangent B A intersect at point B outside of the circ

Mama L [17]

Answer: 88 units

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If the area of the rectangle is 42 square units, what is the area of the shaded part?

MArishka [77]

lol you also in mcp

;adksfj;dkjaf;dkfjkdjaf;kdsjfaksdfj;askdj;fsadklfj;askdfjsakldj;fasdkljfaskldjfasdklf

4 0

2 years ago

Find two positive numbers whose product is 25 and whose sum is a minimum. (if both values are the same number, enter it into bot

pshichka [43]

Let xy = 25, x and y > 0.

$y = \frac{25}{x}$
$\text{Denote S as: } x + y$
$S(x) = x + \frac{25}{x}$

$\text{Minimum: }S'(x) = 0, S''(x) > 0$
$S'(x) = 1 - \frac{25}{x^{2}}$
$1 - \frac{25}{x^{2}} = 0$
$x^{2} = 25$
$x = 5 (x > 0)$

$S''(x) = \frac{50}{x^{3}} > 0, (x > 0)$

Thus, at x = 5, there lies a minimum summation, and this forms a square with side length of 5.

4 0

3 years ago