Answer:
Step-by-step explanation:
ffffffffff
(-9) - (-2) = -7
that should be the answer you subtract
Answer:
x = -11/7
x = 11/7
Step-by-step explanation:
49x² - 121
Factor
(7x + 11)(7x - 11)
roots
x = -11/7
x = 11/7
You should do distributive property.