Answer:
9x^4+3x^2 -6
Step-by-step explanation:
(3x^2-2)(3x^2+3)
expand to remove the bracket
9x^4 + 9x^2 -6x^2 - 6
9x^4 + 3x^2- 6
Change the common denominator so 3/4 ---> 9/12
3/4 and 9/12 are equal
Hope this helps!!!
Yes because if you add forty and thirty that equals seventy plus twenty is 90 which is a right angle
I think the answer is D: interview every student who eats lunch in the cafeteria