Question

subtract x²+10x5 from 5x-10
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Answer 1

Answer:

${ - x}^{2} + 15x - 5$

Step-by-step explanation:

$5x - 10 - x {}^{2} + 10 x + 5 \\ now \: vertical \: meathod \\ 5x - 10 \\ + 10 x + 15 - x {}^{2}$

=

$- x {}^{2} + 15x \: - 5$