What is expand (2x-3y-4z=4,)(6x-3y-8z=2) ?

The solution to expand (2x-3y-4z=4,)(6x-3y-8z=2) is 12x^2-6xy-16xz=2

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expand (2x-3y-4z=4,)(6x-3y-8z=2)

expand

(2 x - 3 y - 4 z = 4,) (6 x - 3 y - 8 z = 2)

12 x^{2} - 6 x y - 16 x z = 2

Solution steps

(2 x - 3 y - 4 z = 4,) (6 x - 3 y - 8 z = 2)

= (2 x - 3 y - 4 \cdot 4 =, z) (6 x - 3 y - 8 \cdot 2 = z)

Distribute parentheses

= 2 x \cdot 6 x + 2 x (- 3 y) + 2 x (- 8 z = 2) + (- 3 y) \cdot 6 x + (- 3 y) (- 3 y) + (- 3 y) (- 8 z = 2) + (- 4 z = 4,) \cdot 6 x + (- 4 z = 4,) (- 3 y) + (- 4 z = 4,) (- 8 z = 2)

Apply minus-plus rules

+ (- a) = - a, (- a) (- b) = ab

2 \cdot 6 xx - 2 \cdot 3 x y - 2 \cdot 8 x z = 2 - 3 \cdot 6 x y + 3 \cdot 3 yy + 3 \cdot 8 yz = 2 - 4 z = 4, 6 x + 4 z = 4, 3 y + 4 z = 4, 8 z = 2

Expand

2 \cdot 6 xx - 2 \cdot 3 x y - 2 \cdot 8 x z : 12 x^{2} - 6 x y - 16 x z

12 x^{2} - 6 x y - 16 x z = 2

7 18 + 350

\frac{( n ) ( n - 1 )}{2}

45 \times 6

f^{3} (x - y, 3 x)

\frac{A x + 5 A + B}{( x - 2 ) ( x - 3 )}

What is expand (2x-3y-4z=4,)(6x-3y-8z=2) ?
The solution to expand (2x-3y-4z=4,)(6x-3y-8z=2) is 12x^2-6xy-16xz=2