What is expand (3x-5y=4,)(3x-2y=12) ?

The solution to expand (3x-5y=4,)(3x-2y=12) is 9x^2-6xy=12

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expand (3x-5y=4,)(3x-2y=12)

expand

(3 x - 5 y = 4,) (3 x - 2 y = 12)

9 x^{2} - 6 x y = 12

Solution steps

(3 x - 5 y = 4,) (3 x - 2 y = 12)

= (3 x - 5 \cdot 4 =, y) (3 x - 2 \cdot 12 = y)

Apply FOIL method:

(a + b) (c + d) = a c + a d + b c + b d

a = 3 x, b = - 5 y = 4,, c = 3 x, d = - 2 y = 12

= 3 x \cdot 3 x + 3 x (- 2 y = 12) + (- 5 y = 4,) \cdot 3 x + (- 5 y = 4,) (- 2 y = 12)

Apply minus-plus rules

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

3 \cdot 3 xx - 3 \cdot 2 x y = 12 - 5 y = 4, 3 x + 5 y = 4, 2 y = 12

Expand

3 \cdot 3 xx - 3 \cdot 2 x y : 9 x^{2} - 6 x y

9 x^{2} - 6 x y = 12

\frac{x + y i - 3}{( x + y i ) ^{2} + 2 ( x + y i ) + 2}

\frac{1}{s ( s ^{3} + 6 s ^{2} + 11 x + 6 )}

- e^{3 x} (e^{- x} + 1)

(1 + 2 π sin (2 π t))^{2}

\frac{\partial}{\partial x} ((z) (x^{2} + y^{2} + x y))

What is expand (3x-5y=4,)(3x-2y=12) ?
The solution to expand (3x-5y=4,)(3x-2y=12) is 9x^2-6xy=12