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

The solution to expand (4x-y=5,)(5x+2y=3) is 20x^2+8xy=3

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

expand

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

20 x^{2} + 8 x y = 3

Solution steps

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

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

Apply FOIL method:

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

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

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

Apply minus-plus rules

+ (- a) = - a

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

Expand

4 \cdot 5 xx + 4 \cdot 2 x y : 20 x^{2} + 8 x y

20 x^{2} + 8 x y = 3

u (2, 5) w (3, - 2)

\frac{( 136 - 13 y ) \cdot y}{6}

\frac{a ^{2} + 5 a + 25}{a ( a + 2 )}

\frac{u ^{2} + 8 u + 12}{5 ( u - 2 )}

36 π - \frac{9 π ( 4 - 2 )}{2}

What is expand (4x-y=5,)(5x+2y=3) ?
The solution to expand (4x-y=5,)(5x+2y=3) is 20x^2+8xy=3