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5 votes
(z + 5)2 = 7
Please help and give me the right answer

2 Answers

0 votes

Answer:

Z=-1.5

Explanation:

(Z+5)2=7

2z+10=7 distribute the 2 to z & 5

-10 -10

2z=-3 divide both sides by 2

Z=-1.5

Hope this helps!

User Dukhabandhu Sahoo
by
4.9k points
5 votes

Answer:

-1.5

Explanation:

(z+5)2=7

distribute the 2

2x5=10

2x Z= 2z

2Z+ 10=7

subtract 10 on both sides

2z= -3

divide

-3 divided by 2 equals -3/2

decimal form=

-1.5

hope it helped

User Andy Brown
by
5.3k points