Answer:
x = 3
Step-by-step explanation:
(x - 1)2 = 4
how to get this solved is very simple.
first step to apply is the BODMAS RULE
B..................... bracket
O..................... of
D.....................Division
M.................... multiplication
A..................... addition
S.................... Subtraction
so (x - 1)2 = 4
we have,
2x - 2 = 4 ( by opening the bracket)
collect the like terms
2x = 4+2
divide both sides by 2
2x/2 = 6/2
x = 3
to check if your answer is correct put the value of x = 3 into the question and see if the right hand side will equal to the left handside
(x - 1)2 = 4
(3-1)2=4
2(2)=4
4=4.............................. proved
Answer:
U
Step-by-step explanation:
You dont help people you give bs answers
Answer:
the triangle is not right angled traingle
Step-by-step explanation:
For a right angle triangle
+ 
= 
where a is the base , b is the height and c is the hypotenuse
taking a= 6 b = 14 and c = 15
hence 
+
= 
36+196 = 232 which is not equal to 225
therefore the triangle is not right angled traingle
The correct answer is 21 and 9. 21+9=30 and 21-9=12. Hope this helps.
