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usually means times a number in algebra example: if x equals 4 then what is 4x? the answer is 16 because it means 4 times 4

Q: What does x represent in 40x?

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40x=280 x=7

x equals 9

For x-2x= 3x-43x+1 x-2x= -x and 3x-43x+1 = -40x+1 so -x= -40x+1 subtract -x from both sides 0= -39x +1 -1 = -39x so 1=39x so x=1/39

X3 + 13X2 + 40X factor out an X X(X2 + 13X + 40) factor the quadratic expression, what two factors of 40 add up to 13? X(X + 8)(X + 5) works the same if that is a negative in front of X3, just sign changes

Multiply These Equals What you mix 50 .10+x 5+50x Plus what you have 90 .10 9 Equals what you need 40 x 40x 5+50x+9=40x 14+50x=40x 10x=14 x=1.4 140%

Related questions

40x=280 x=7

If you mean: 4xsquared+40x+100 then divide all terms by 4 which then factors to (x+5)(x+5)

(x - 20)(x - 20)

40x=360 div both sides by 40 x=9

2 * 2 * 3 * x = 12x2 * 2 * 2 * 5 * x * x = 40x^2Select the common factors.2 * 2 * x = 4x, the GCF

x equals 9

35 + 40x + 5x2 = 5(7 + 8x + x2) = 5(7 + x)(1 + x)

x(x + 8)(x + 5)

TC=x^2-40x=405

26/40 = x/100 cross multiply 40x=2600 x= 65%

For x-2x= 3x-43x+1 x-2x= -x and 3x-43x+1 = -40x+1 so -x= -40x+1 subtract -x from both sides 0= -39x +1 -1 = -39x so 1=39x so x=1/39

5x^2 + 40x = 05x(x + 8) = 05x = 0 or x + 8 = 0x = 0 or x = -8Check: