Question

срочноо решитее
$frac{2a²+5a-12}{2a-3} -a+1$

Answer 1

$frac{2a^{2} +5a-12}{2a-3} -a+1= frac{2a^{2}+5a-12-(a-1)(2a-3) }{2a-3} = frac{2 a^{2}+5a-12-2a^{2}+3a+2a-3 }{2a-3}=$$frac{10a-15}{2a-3}= frac{5(2a-3)}{2a-3}=5$