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Solve by factoring 3x2 equals -9?
3x2 = -9 (divide both sides by 3) x2 = -3 (x would have to be the square root of -3) x = ±√-3 x = ±√3i Since you want to solve by factoring: x2 = -3 add 3 to both sides x2 + 3 = 0 x2 - 3i2 = 0 x2 - (√3i)2 = 0 Factor: (x - √3i)(x + √3i) = 0 x - √3i = 0 or x + √3i = 0 x = √3i or x = -√3i
What is x2 plus 9 equal?
The value of the expression x2 + 9 will depend on what value you plug in for x. If you are looking to factor that expression, it can only be done using complex numbers:x2 + 9 = (x + 3i)(x - 3i)
What is the factors of 4wt plus 2wh plus 6it plus 3ih?
There are four terms in the expression: 4wt, 2wh, 6it and 3ih.4wt and 2wh have 2w in common and 6it and 3ih have 3i in common.4wt + 2wh can be written as 2w(t + h) and 6it + 3ih can be written as 3i(t + h).So the whole algerbraic expression can be written as:2w(t + h) + 3i(t + h)Now consider that 2w(t + h) and 3i(t + h) are two new terms and both have (t + h) in common.Rewriting the expression we get:(2w + 3i)(t + h).So, the required factors are (2w + 3i) and (t + h).
Who bet the computers in calculation of complex numbers?
I would certainly bet on a computer. Try to solve (log z)^-3i. This is log z raised to the -3i power. A computer comes in handy.
How do you solve for z if 15yz?
There is no equation (or inequality) to solve. 15yz is an expression and an expression cannot be solved.
What is conjugate of 2 plus 3i?
- 2 - 3i
Can you solve a math expression?
No. An expression cannot be solved.
Can you solve for a variable in an expression?
No, you can only simplify an expression. To solve for a variable, it must be in an equation.
How do you find the value of x in the following 10 times x 73?
You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.You cannot solve an expression. You need an equation or inequality.
How do you solve x2 plus 3x4?
This is an expression and you do not solve an expression, but you can factor this one.X2 + 3X4X2(1 + 3X2)========
Do you have to solve an expression?
yes
What is S to the 3rd power- 3s to the 2nd power plus 9s-27?
s3 - 3s2 + 9s - 27 = s2(s - 3) + 9(s - 3) = (s - 3)(s2 + 9) or = (s - 3)(s2 - (9i2) = (s - 3)(s - 3i)(s + 3i) if you want to find for what values of s the expression equals to zero, then this happens when s - 3 = 0 or s - 3i = 0 or s + 3i = 0 s = 3, ±3i
