What is the exact value for the expression the square root of 189. − the square root of 21. + the square root of 84.? simplify if possible.

the exact value of the given expression is:

Step-by-step explanation:

we are given to find the value of the expression

square root of 189-square root of 21+square root of 84

similarly  

therefore

hence the resultant answer corresponding to the given expression is .

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1