Answer:
x-y=-6
Step-by-step explanation:
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Answer:
Common difference:6 3 terms: -15, -9. -3
Step-by-step explanation:
-39, -33, -27, and -21 all have a difference of 6.
X² - 8x = -10
to have a complete square, we must have this format:
a² + 2ab + b²
a² = x²
2ab = -8x ⇒ 2(x)(-4)
b² = -4² = 16
x² - 8x + 16 = -10 + 16
x² - 8x + 16 = +6
(x-4)² - 6 = 0
Both sides must have an additional value of 16.
