imello51
23.09.2019 •
Mathematics
How would the expression x²-9 be rewritten using difference of squares?
a. (x+3)²
b. (x-9)²
c. (x+3)(x-3)
d. (x+9)(x-9)
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Ответ:
(x+3)(x-3)=x²-9
Ответ:
C
Step-by-step explanation: on Apex :)
Ответ:
answer:
add 7 then divide by 4
step-by-step explanation:
4a-7=5
+7 +7
4a=12
/3 /3
a=4
mark brainliest!