joannakawata6
08.11.2020 •
Mathematics
Expand and simplify completely
(z+6)(z+6)
(x+5)(x+5)
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Ответ:
(z+6)(z+6): z ^ 2 + 12z + 36
(x+5)(x+5): x ^ 2 + 10x + 25
Step-by-step explanation:
Ответ:
Angle 4 =55 degree
Step-by-step explanation:
1st find the and beside angel 4:
180 degree-(25+30)=125degree
Then,
To find angle 4 : 180-125 =55 degree