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AnnZ [28]
3 years ago
5

Factor the trinomial completely. 4x²y + 8xy - 8y

Mathematics
1 answer:
astra-53 [7]3 years ago
6 0

Answer:

4y\left(x^2+2x-2\right)

Step-by-step explanation:

\mathrm{Rewrite\:}-8\mathrm{\:as\:}2\cdot \:4, \mathrm{rewrite\:}8\mathrm{\:as\:}2\cdot \:4

4x^2y+2\cdot \:4xy+2\cdot \:4y

4y\left(x^2+2x-2\right)

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Use the difference of cubes identity to write the expression x3 – 64 in factored form.
Elena-2011 [213]

Answer:

Hey there!

We have:

x^3-64

x^3-4^3

(x-4)(x^2+4x+16)

Let me know if this helps :)

3 0
3 years ago
Find x from given equations sin30 + 2 cot^2 30 + x cos^2 30= 8+ tan^2 45 + cos 60​
julia-pushkina [17]

Answer

1/2+2×(sqrt3)^2+x.(sqrt3/2)^2=8+1^2+1/2

1/2+2×3+x.3/4=8+1+1/2

1/2-1/2+6+x.3/4=9

x.3/4=9-6

x.3×4=3

x.3=3×4

x.3=12

x=12/3

x=4.

so, the value of x is 4.

hope it helps you.

4 0
3 years ago
Guys please help me whit this , I got a lot of time doing this please give me the answer
Usimov [2.4K]

Answer:

c

Step-by-step explanation:

this needs evaluation of Bella's income on every chore.

say when c = 1, d = 3.5*1+11= 14.5

c=2 d = 3.5*2+11= 18..evaluate for c=3,4,5.

with that it can be found that bella earns more than sweet t. so choice c

8 0
3 years ago
Read 2 more answers
Find the value of x - Secant and Tangent Angles in Circles
VladimirAG [237]

Answer:

  C.  70°

Step-by-step explanation:

The inscribed angle marked 15° intercepts an arc that is double that measure, so the intercepted arc on the right is 2×15° = 30°.

The external angle marked 20° is half the difference of the intercepted arcs, so is ...

  20° = (1/2)(x - 30°)

  40° = x - 30° . . . . . . multiply by 2

  70° = x . . . . . . . . . . . add 30°

The value of x is 70°.

6 0
3 years ago
How can you solve 19+6 using only equations to model your thinking(Grade 2)
klasskru [66]
You could put,
19
+ 6
———
25
Then write,
19+6=25
8 0
4 years ago
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