Question

1)2ײ+4=54 2)-ײ+15=-34

Answer 1

Explicación paso a paso:

1)

2x² +4 = 54

2x² = 54-4

2x² = 50

x² = 50/2

x² = 25

x= √25

x = ± 5

2)

-ײ+15=-34

15 +34=x²

49=x²

√49= x

±7=x