Penjelasan dengan langkah-langkah:
x = -6
y = 9
Bagian A)
= xy + y²
= (-6)(9) + 9²
= ((-6)×9) + (9×9)
= (-54) + 81
= 27
Bagian B)
= x² - y²
= (x - y)(x + y)
= ((-6) - 9)((-6) + 9)
= (-15)(3)
= (-15)×3
= -45
Bagian C)
= 2x - 3y
= 2(-6) - 3(9)
= (2×(-6)) - (3×9)
= (-12) - 27
= -39
Jika:
maka:
(-6(9) + 9²
= -54 + (9.9)
= -54 + 81
-6² - 9²
= -(6.6) - 9²
= -36 - (9.9)
= -36 - 81
= (-117)
2(-6) - 3(9)
= -12 - 27
= (-39)
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Penjelasan dengan langkah-langkah:
x = -6
y = 9
Bagian A)
= xy + y²
= (-6)(9) + 9²
= ((-6)×9) + (9×9)
= (-54) + 81
= 27
Bagian B)
= x² - y²
= (x - y)(x + y)
= ((-6) - 9)((-6) + 9)
= (-15)(3)
= (-15)×3
= -45
Bagian C)
= 2x - 3y
= 2(-6) - 3(9)
= (2×(-6)) - (3×9)
= (-12) - 27
= -39
https://brainly.co.id/tugas/52013131?utm_source=android&utm_medium=share&utm_campaign=question
Penjelasan dengan langkah-langkah:
Jika:
maka:
(-6(9) + 9²
= -54 + (9.9)
= -54 + 81
= 27
-6² - 9²
= -(6.6) - 9²
= -36 - (9.9)
= -36 - 81
= (-117)
2(-6) - 3(9)
= -12 - 27
= (-39)
https://brainly.co.id/tugas/52013131?utm_source=android&utm_medium=share&utm_campaign=question