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Ronch [10]
3 years ago
9

Expand then sliplify : 3z (2z +4) + 6z (2z - 5)

Mathematics
1 answer:
klio [65]3 years ago
4 0
Let's expand first:
6z^2+12z+12z^2-30z

Simplify (combine like terms):
18z^2-18z
18z(z-1)

So, your most simplified answer is 18z(z-1) or 18z²-18z.
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In order for the parallelogram to be a rhombus x = ?
Zina [86]

Answer: x= 207.8873386

Step-by-step explanation:

expecting both 2x-15 and 3x are angles in radiant, let's draw a rhombus ABCD

∠ABC = 2x-15

∠ BCD = 3x

∠ABC + < BCD= π ( 180° in radiant)

2x - 15 + 3x = π

5x - 15 = π

x - 3 = 1/5π

= 3.628318531 = 207.8873386

2x−15°+3x=180

5x-15°=180

5x=195°

x=39°

7 0
3 years ago
G(x)=x^4-32x^2+256;x=-4
Sindrei [870]

Answer:4

Step-by-step explanation:

6 0
3 years ago
Natalie has pounds of potatoes. She needs of that amount. How many pounds of potatoes does she need?
Savatey [412]
She will need 10 pounds
4 0
3 years ago
What are some methods to finding the distance between A and B
Wittaler [7]
Are a and b two points on a line
If they are you can use the distance formula
6 0
3 years ago
Can you guys help we with this question. ​​​​​​
satela [25.4K]

Answer:

40

Step-by-step explanation:

(2x+1/(2x))^5 *(2x -1/(2x))^5

= ((2x)^2 -1/(2x)^2)^5 (a+b)*(a-b) =a2-b2

= (4x^2-1/4(x)^2)^5

now

x =4x^2. ,a = 1/4(x)^2 ,n =5

we have

general term = Cr *x^r *a^(n-r)

= Cr * (4x^2)^r * (1/4(x)^2)^(n-r)

= Cr *4^r * X^2r * 1/( 4^(n-r) *x^(2n-2r)

= Cr * 4^r/4^(n-r) * x^(2r)/x^(2n-2r)

= Cr * 4(2r-n) *x(4r-2n)

now for x^2

4r-2n = 2

4r -10=2

4r =12

r = 3

now for coeff

C(5,3) * 4^(2*3-5)

5!/(3!*(5-3)!) * 4

5*4/(2*1)*4

40

4 0
3 years ago
Read 2 more answers
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