alexiscorey7051
02.10.2020 •
Mathematics
10. Solve the equation 1 + x + x² + x
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Ответ:
x^2 + 2x + 1
Step-by-step explanation:
1. collect the like terms.
2. use the commutative property to reorder the terms.
Ответ:
h^2 = a^2 + b^2
c^2 = 20^2 + 28^2
c^2 = 400 + 784
c^2 = 1184
c = 34.41