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How do you solve four to the x power minus two to the x plus one power all equaling 15?
So you have (4^(x-2))^(x+1)=15. Using a law of exponents (b^a)^c=b^(a*c) and 4=2^2, you get
4^((x-2)*(x+1))=15=2^(2(x-2)(x+1)).
Take log base two and use the rule about logs of products you get
2(x-2)(x+1)=Log_2(15)
Simplifying and substituting u for Log_2(15),
2x^2-2x-4=u, which means
2x^2-2x-(4+u)=0, using quadratic formula.
X=(1/4)(2(+or-)sqrt(4-4*2*(-4-u))) or
(1/2) plus or minus (1/4)(sqrt(36+8u))
Where sqrt(b) is the square root of b
What else can I help you with?
Four times three to the second power minus two?
Four times 3^2 minus two = 34.
Sixteen to the second power minus sixty-four?
192
Simplify two power four minus two?
16 - 2 = 14
How do you solve four squared minus x equals three?
(-x)2 = 3=> -x = ±√3=> x = -√3 and x = √3
What is Four to the third power minus three to the second power?
4 cubed is 64, 3 squared is 9, so 55.
What is 900 and divide10 with the power of four solve it?
900 and divide10 with the power of four solve it = 90
Four times three to the second power minus two?
Four times 3^2 minus two = 34.
What is 5 to the power of four times 5 to the power of minus 2?
5 to the power of 2
Sixteen to the second power minus sixty-four?
192
How do you solve 3c 4 -7?
Question 3C: Four minus seven equals negative two.
Simplify two power four minus two?
16 - 2 = 14
What is four times minus six?
Four times minus six is minus twenty four.
What is two to the third power times three minus one to the second power plus negative four to the second power?
31
How do you solve five thirds minus four fifths?
5/3 - 4/5 = 25/15 - 12/15 = 13/15
How do you solve four squared minus x equals three?
(-x)2 = 3=> -x = ±√3=> x = -√3 and x = √3
What is Four to the third power minus three to the second power?
4 cubed is 64, 3 squared is 9, so 55.
Twelve minus four times two to the fourth power plus six equals?
-68 I think
