X(2x+5)=7+2x paktorkanlah

x( 2x + 5 ) + 7 ( x + y )
2x^2 + 12x + 7y

Gunakan rumus berikut :
ax^2 + bx + c

a(x- -b+√b^2-4ac / 2a)(x- -b-√b^2-4ac / 2a)

2(x- -12+√12^2-4 x 2 x 7y)/2x2)
(x- -12-√12^2-4 x 2 x 7y)/2x2)

2(x- -12+2√2(18-7y)/4 (x- -12-2√2(18-7y) / 4

2(x- -2(6-√2(18-7y)) / 4 (x- -12-2√2(18-7y) / 4

2(x-(- 2(6-√2(18-7y)) /4)) (x- -12-2√2(18-7y) / 4

2(x-( - 6-√2(18-7y)/2))(x- -12-2√2(18-7y) / 4

2(x+ 6-√2(18-7y)/2)(x- -12-2√2(18-7y) / 4

2(x+ 6-√2(18-7y)/2)(x- -2(6+√2(18-7y))/4 )

2(x+ 6-√2(18-7y)/2) (x-(- 2(6+√2(18-7y/4)) ))

2(x+ 6-√2(18-7y)/2) (x-(- 6+√2(18-7y)/2))


2(x+ 6-√2(18-7y)/2)(x+ 6+√2(18-7y)/2)

maaf kalau salah ya :v