Answer:
Step-by-step explanation:
4(x+2)+3(2x+5)
4x+8+6x+15
10x+23
Answer:
± 6
Step-by-step explanation:
Given
= 
= + 6 or - 6 , that is ± 6
Use the quadratic formula with a = 2, b = -5, and c = 1
x = -b ± sq rt b2 - 4ac
-------------------- <---------- Please note: sq rt is over entire expression of b^2 - 4ac
2a
x = - (-5) ± sq rt (-5)2 + 4(2)(1)
-------------------------------- <---------Please note: sq rt is over entire expression (-5)2 + 4(2)(1)
2(2)
x = 5 ± √17
---------
4
x = 5 + 1√17 OR x = 5 + -1√17
--- --- --- ----
4 4 4 4
Answer: x = 5 + 1√17 OR x = 5 + -1√17
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4 4 4 4
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