Question

Rezolvati ecuatiile:
x²+7=32;
2x²+15=86;
4x²-5=149;

Answer 1

x=32-7
x=25


x=71:5
x=14,5

x=156:4
x=34

Answer 2

x²=32-7
x²=25
x²=5²
x=5
2x²=86-15
2x²=71
x²=71:2
4x²=149+5
4x²=154
x²=154:4
x²=38,5
sper ca te-am ajutat,eu asa am invatat sa le rezolv. succes!