(5х2+6х-3)-(2х2-3х-4)

Question

(5х2+6х-3)-(2х2-3х-4)

Comments

5x2 - то есть? конкретней

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умножение?

Answer 1

(5*2+6*(-3))-(2*2-3*(-4)) = (10-18) - (4+12) = 8

Answer 2

(5х2+6х-3)-(2х2-3х-4)
(10+6х-3)-(4-3х-4)
(7+6х)-(-3х)
7+6х+3х
7+9х