Tolongin ya inii soalnya ada di gambar
Jawab:
1. x² -8x + 15 = 0
(x-5)(x-3) =0
x = 5 dan x = 3
2. 2x² -x -3 = 0
x(2x - 1) = 3 tidak ada bilangan bulat yang memenuhi
semoga membantu,, jadikan jawaban terbaik yaa^^
Jawaban:
No.1
x² - 7x + 15 = 0
( x - 5 )( x - 3 ) = 0
x = 5
x = 3
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No.2
2x² - x - 3 = 0
2x² + 2x - 3x - 3 = 0
(2x² + 2x) + ( -3x - 3 ) = 0
2x(x + 1 ) - 3(x + 1 ) = 0
( 2x - 3 )( x + 1 ) = 0
x = -1
[tex] \bold{x \: = \frac{3}{2} } [/tex]
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