What is expand (3x-4y=4,)(5x-2y=9) ?

The solution to expand (3x-4y=4,)(5x-2y=9) is 15x^2-6xy=9

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expand (3x-4y=4,)(5x-2y=9)

expand

(3 x - 4 y = 4,) (5 x - 2 y = 9)

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

Solution steps

(3 x - 4 y = 4,) (5 x - 2 y = 9)

= (3 x - 4 \cdot 4 =, y) (5 x - 2 \cdot 9 = y)

Apply FOIL method:

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

a = 3 x, b = - 4 y = 4,, c = 5 x, d = - 2 y = 9

= 3 x \cdot 5 x + 3 x (- 2 y = 9) + (- 4 y = 4,) \cdot 5 x + (- 4 y = 4,) (- 2 y = 9)

Apply minus-plus rules

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

3 \cdot 5 xx - 3 \cdot 2 x y = 9 - 4 y = 4, 5 x + 4 y = 4, 2 y = 9

Expand

3 \cdot 5 xx - 3 \cdot 2 x y : 15 x^{2} - 6 x y

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

e^{x} \cdot (x + y)

(y^{3} + 10 x y^{4} - 2 x) d x

e^{4 (l n ∣ x ∣ + C)}

\frac{s}{( s - 3 ) ( s - 6 ) ( s - 2 )}

(1 + 3 e^{- t})^{2}

What is expand (3x-4y=4,)(5x-2y=9) ?
The solution to expand (3x-4y=4,)(5x-2y=9) is 15x^2-6xy=9