Answer:
9x^3-74x+28
X
Step-by-step explanation:
USED PHOTOMATH BTW. DUNNO IF ITS RIGHT OR WRONG.
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You would need 13 cases. If you would like an explanation of my answer, let me know.
Answer:
(- 1, 0) and (9, 0 )
Step-by-step explanation:
To find the x- intercepts let y = 0 in the equation and solve for x, that is
x² + y² - 8x - 8y - 9 = 0
x² - 8x - 9 = 0 ← in standard form
(x - 9)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 9 =0 ⇒ x = 9
x + 1 = 0 ⇒ x = - 1
x- intercepts are (- 1, 0 ) and (9, 0 )
3+16=19,
3+20=23
So the correct answer would be 19 and 23
