Question

Me ajudem por favor!

7- Sendo A = 3x² +5x-6, determine o valor de A para:
a) x= -2; b) x= 2-¹

Answer 1

a)
3.(-2)²+5.(-2)-6
3.2²-10-6
12-10-6
-4!

b)
3.(2౼¹)²+5.(2౼¹)-6
3.2౼²+5.1/2-6
3.1/2²+5/2-6
3/4+5/2-6
3+10-24/4
-11/4!