hartmat
14.06.2021 •
Mathematics
Written as a simplified polynomial in standard form, what is the result when (2x + 4)^2 is subtracted from 7x^2-10x-10?
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Ответ:
(7x^2 - 10x - 10) - (4x^2 + 8x + 8x + 16)
(7x^2 - 10x - 10) - (4x^2 + 16x + 16)
(7x^2 - 4x^2) + (- 10x - 16x) + (- 10 - 16)
3x^2 - 26x - 26
Ответ:
Solution: Since, it’s a standard cone opening up on the positive x- axis
Therefore, x=√y2+z2