All categories

2 years ago

(2x+3y+4z)(4x^2+9y^2+16z^2-6xy-12yz-8zx)

1 answer:

6 0

1.1 Factoring: 4x2+9y2+16z2-6xy-12yz-8xz

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: -6xy-12yz
Group 2: 16z2-8xz
Group 3: 4x2+9y2

Pull out from each group separately :

Group 1: (x+2z) • (-6y)
Group 2: (x-2z) • (-8z)
Group 3: (4x2+9y2) • (1)

Looking for common sub-expressions :

Group 1: (x+2z) • (-6y)
Group 3: (4x2+9y2) • (1)
Group 2: (x-2z) • (-8z)

You might be interested in

9) If m/1 = 45° and 21 and 22 are complementary angles. Find m22.

Allisa [31]

❄ Hi there,

keeping in mind that the sum of complementary angles is 90°,

set up an equation, letting $\angle2$ be x –

$\triangleright \ \sf{\angle1+x=90}$ {and we know that $\boxed{\angle1=45}$ }

$\triangleright \ \sf{45+x=90}$

$\triangleright \ \sf{x=90-45}$

$\triangleright \ \sf{x=45}$

$\triangleright \ \sf{\angle2=45\textdegree}$

__________

Keeping in mind that a right angle is 90°,

set up an equation, letting $\angle1$ be x:

$\triangleright \ \sf{x+\angle2=90}$ {and we know that $\boxed{\angle2=63}$ }

$\triangleright \ \sf{x+63=90}$

$\triangleright \ \sf{x=27}$

$\triangleright \ \sf{\angle1=47\textdegree}$

❄

5 0

2 years ago

Can someone help with 9-12 please ?

ad-work [718]

Answer:

9-12 is -3

Step-by-step explanation:

6 0

2 years ago

Answer!!!!!! Please!!!!!!

shusha [124]

Answer:

Step-by-step explanation:

Using calculator to evaluate

$2^{\sqrt{19} }$ ≈ 20.5191 → C

6 0

2 years ago

Read 2 more answers

Given that (x,y) = (5,15) find tan Ø. A. 3 B. 1/3 C. 5 D. 1/5

lesantik [10]

This value is in the positive quadrant meaning that all values remain positive. To answer this problem you must have an understanding of trig ratios being that tangent is opposite/adjacent. When you plot the points and draw a triangle using the origin of the point, you find that the adjacent value is 5 and opposite value is 15

7 0

3 years ago

Which is greatest 895mm or 8,98mm?

inessss [21]

898 mm because 8.98 is a lot smaller, it's only in the ones place.

6 0

2 years ago

Read 2 more answers