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How do you solve this problem what is the value of the expression 2x squared plus 3xy - 4y squared when x equals 2 and Y equals 4?
x = 2 so x squared = 4 and 2x squared = 2 times 4 = 8; y = 4 so xy = 2 times 4 = 8 and 3xy = 3 times 8 = 24; y squared = 4 times 4 = 16 and 4y squared = 4 times 16 = 64; so 8 + 24 - 64 = 32 - 64 = -32
What is 8x squared times 2x?
To solve the expression 8x^2 * 2x, you first multiply the coefficients (8 * 2 = 16). Then, you multiply the variables with the same base by adding their exponents (x^2 * x = x^(2+1) = x^3). Therefore, the simplified expression is 16x^3.
What is -2 times x squared?
It is -2*x*x
What is -8 times x squared?
I is -8x^2.
What is Negative x squared times x?
If you mean -(x^2) * x then the answer is -x^3 if you mean (-x)^2 * x then the answer is x^3
How do you solve negative 3 times negative 3 squared?
(-3)x(-3)2 =(-3)(9)=-27
How do you solve 2 times negative four squared?
first, you square negative 4. Since negative times negative is positive, then you get positive sixteen., Then positive 16 times two is 32
What is 5.9310to the negative 2?
The answer is .0284278589. To solve you solve like a normal squared problem, just with a negative. So, on a calculator like a TI-83, you do this: 5.9310^-2
Why is -2 squared equal plus 4?
A negative times a negative is always positive. To see why this is, see the link below.
What is X squared times negative x squared?
If you mean -(x^2) * x then the answer is -x^3 if you mean (-x)^2 * x then the answer is x^3
What is negative two plus negative squared?
negative 2
What is negative two time negative two squared plus zero times negative two plus nine?
-2*(-2)2 + 0*(-2) + 9 = -2*4 + 9 = -8 + 9 = 1
What is negative 4 squared minus negative 2 squared?
(-4)^2 - ( - 2)^2 = Factor ((-4) + (-2))((-4) - (-2)) = (-4 -2)(-4 + 2) = (-6)(-2) = (+12) Or more simply 16 - 4 = (+12)
How do you solve this problem what is the value of the expression 2x squared plus 3xy - 4y squared when x equals 2 and Y equals 4?
x = 2 so x squared = 4 and 2x squared = 2 times 4 = 8; y = 4 so xy = 2 times 4 = 8 and 3xy = 3 times 8 = 24; y squared = 4 times 4 = 16 and 4y squared = 4 times 16 = 64; so 8 + 24 - 64 = 32 - 64 = -32
What is -24 squared?
(-24)2=576. If you're wondering why the answer is positive it's because a negative times a negative is a positive number.
A squared over A to the fourth?
One over A squared or A to the negative 2.
If you square a negative number is the answer negative -3 squared equals 9 or -9?
It depends if the negative is being squared also. If you have (-3)^2 then it = 9 If you have -(3)^2 then it = -9
