Hello :
<span>√(4x+13) = 2x-1......(1)
note : if ( a=b) so (a² = b²)
if : (</span>√(4x+13) )²= (2x-1)² so : 4x+13 = 4x²-4x+1
4x²-8x-12 = 0
x²-2x-3 = 0
(x+1)(x-3) = 0
x+1 = 0 or x-3=0
x= -1 or x=3
if : x= -1 : <span>√(4(-1)+13) = 2(-1)-1
</span>√9 =-3 but √9 =3
3 = -3 impossible ( -1 is not solution of equation (1)
if : x = 3 : √(4(3)+13) = 2(3)-1
5 = 5 ( right) conclusion : one solution : 3
Answer:
Step-by-step explanation:It sounds and looks to me as if you just need to find the missing number that goes between the second and last number.
Answer:
17/k
Step-by-step explanation:
Quotient means division
17/k
Answer:
The y intercept is 3
the slope is -1x
it's a linear line
hope this helps
have a good day :)
Step-by-step explanation: