Question

А) -3a²+b при a= -2, b= 5
Б) 13x-26y при x=2,4, y= -3,8

Answer 1

$a) - 3 times {( - 2)}^{2} + 5 = - 3 times 4 + 5 = - 12 + 5 = - 7 \ b)13 times 2.4 - 26 times ( - 3.8) = 31.2 + 98.8 = 130$

Answer 2

b²

Answer 3

=-3×4+5^2=-12+25=13

Answer 4

пасеба большое, рил , cgfcb,j

Answer 5

спасибо