Answer:
i think you should get brainly tutor even if you cant afford it you can use the free trail to see if you like it they could help you with that give the answer and an explanation
Step-by-step explanation:
(2x^2-11)(x^2+2)
2x^4-7x^2-22
28'042.56
2.6 x 107=278.2
6.3 x 16= 100.8
278.2x100.8=28'042.56
483
