Answer:
x=-1-5√17/2
Step-by-step explanation:
logo((x-2)(x+2))=2
logo(x²+3x-2x-6)=2
x²+3x-2x-6=10²
x²+x-6=100
x²+x-106=0
x=-1+5√17/2
Answer:
Step-by-step explanation:
15
Answer:
x = 2
Step-by-step explanation:
Answer:
a = 0
Step-by-step explanation:
a + 5 = -5a + 5 subtract 5 from both sides
a + 5 - 5 = -5a + 5 - 5
a = -5a add 5a to both sides
a + 5a = -5a + 5a
6a = 0 divide both sides by 6
6a / 6 = 0 / 6
therefore,
a = 0
Answer:
Step-by-step explanation:
Applying BODMAS here;
We first solve what is in the brackets:
9x - 81 -3 = -8x - 16
We then put the like terms together:
9x + 8x = -16 + 81 + 3
We then do the addition:
17x = -16 + 84
We then do the subtraction:
17x = 68
Simplifying this gives:
x =
= 4