Answer:
x^7 + x^6 - 3x^4 + 4x^3 + 6x - 3.
Step-by-step explanation:
(x3 + 2x - 1) (x4 - x3 + 3)
= x^7 - x^6 + 3x^3 + 2x^6 - 2x^4 + 6x - x^4 + x^3 - 3
= x^7 + x^6 - 3x^4 + 4x^3 + 6x - 3.
47, 57, 67, 77 are the numbers.
Answer:
0.777......
Step-by-step explanation:
0.333...... + 0.444......
= 0.777......
Hope it helps :)
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