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4 years ago

What is the product of 2x2 – 3xy + y2 and 2x – 4y?

Mathematics

1 answer:

dybincka [34]4 years ago

8 0

Answer:

C. 4x^3 - 14x^2y + 14xy^2 - 4y^3

Step-by-step explanation:

Given:

Product of 2x^2 – 3xy + y^2 and 2x – 4y

Product means multiplication

(2x^2 – 3xy + y^2) (2x – 4y)

Open the bracket

= 4x^3 - 8x^2y - 6x^2y + 12xy^2 + 2xy^2 - 4y^3

Simplify the like terms

= 4x^3 - 14x^2y + 14xy^2 - 4y^3

The answer is

C. 4x^3 - 14x^2y + 14xy^2 - 4y^3

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What is 4/5 times 7/12

slamgirl [31]

Answer:

$\frac{28}{60}$ ( $\frac{7}{15}$ )

Step-by-step explanation:

b/c 4/5*7/12

means 4*7 and 5*12

then28/60

hope it's helpful

THANK YOU.

3 0

3 years ago

The diagram below shows a sandbox and the frame that surrounds it. What is the area of the frame (the shaded area)? (Giving out

KonstantinChe [14]

Answer:

$2(4x+7)\:ft$

Step-by-step explanation:

$The\:area\:of\:the\:frame: (x+3)(x+5)-(x+1)(x-1)\\=x^{2} +8x+15-x^{2} -1\\=8x+14=2(4x+7)$

4 0

3 years ago

Which expression is equal to 6(-3m)^4

miskamm [114]

<span>6(-3m)^4
= 6(-3)^4 m^4
= 6(81) m^4
= 486 m^4

on your options answer is </span><span>C.6(-3)^4m^4</span>

6 0

3 years ago

Please hurry I will mark you brainliest

Viktor [21]

Answer:

-1

Step-by-step explanation:

im pretty sure its right

sry if it not good luck!!

4 0

3 years ago

The vertex of a quadratic function is (6, 2), and the y-intercept of the function is (0, −70). The equation of the function in v

dimaraw [331]

Answer:

The equation of the function in vertex form is represented by $y = -2\cdot (x-6)^{2}+2$ .

Step-by-step explanation:

Let $(h,k) = (6,2)$ and $(x,y) = (0, - 70)$ , now we substitute on the equation of the quadratic function and solve for $a$ :

$y = a\cdot (x-h)^{2}+k$

$-70 = a\cdot (0-6)^{2}+2$

$-70 = 36\cdot a + 2$

$36\cdot a = -72$

$a = -2$

Therefore, the equation of the function in vertex form is represented by $y = -2\cdot (x-6)^{2}+2$ .

8 0

3 years ago

Read 2 more answers