Question

dau coroana!!!
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Answer 1

a) x=-2 x²=4

x=-17 x²=289

x=12 x²=144

x=-2 x²=4

x=17 x²=289

x=-12 x²=144

b) x²=16 x=4 , -4 radical din din x²=4

x²=1 x=1 , -1 rad x²=1

x²=49 x=7 , -7 rad x²=7

x²=0 x=0 rad x²=0

x²=121 x=11 , -11 rad x²=11

x²=36 x=6 , -6 rad x²=6