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# 2x-3 equals 10x plus 21

Updated: 4/28/2022

Wiki User

13y ago

2x-3=10x+21

2x-3-2x=10x+21-2x

-3=8x+21

-3-21=8x+21-21

-24=8x

-3=x

Wiki User

13y ago

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Q: 2x-3 equals 10x plus 21
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### What is X2 plus 10x plus 21 equals?

x2 + 10x + 21 = (x + 3)(x + 7)

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2x-3 = 21+10x 2x-10x = 21+3 -8x = 24 x = -3

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It is: x2-10x+21 = 0 and the value of x is 3 or 7 when solved

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### What is ten x plus fifteen equals seven x minus twenty-one simplified?

10x+15 = 7x-21 10x-7x = -21-15 3x = -36 x = -12 Which is the solution to the above equation when simplified.

### X squared plus 10x plus 21 divided by x plus 3?

Factorising, we obtain, x2 + 10x + 21 = (x + 7)(x + 3). Thus, x2 + 10x + 21 / (x + 3) = x + 7. That's usually easier than dividing it out!

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### What is the factorization of x2 plus 10x plus 21?

x2 + 10x + 21 = (x + 3)(x + 7) You need to find 2 numbers which sum to 10 and whose product of 21. In this case 3 + 7 = 10 and 3 x 7 = 21.

(x-7)(x-3)