Integrate (30x - 20x ^ 3) * (3x ^ 2 - x ^ 4) ^ 4 dx from - 1 to 2

answer: yes, he is correct

step-by-step explanation: 10x-1=59

                                              1-1=0     59+1=60

60/10=x=6

50- 250 is correct i did that one too

step-by-step explanation:

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

happy to

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