Question

What is x^2-28-3x ? ( x^2 means x squares )

Answer 1

Assignment:
`\bold{Solve \ Equation: \ x^2-28-3x}`

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Answer:
`\boxed{\bold{\left(x+4\right)\left(x-7\right)}}`

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Explanation:
`\downarrow\downarrow\downarrow`

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[ Step One ] Write Equation In Standard Form:
`\bold{ax^2+bx+c}`

`\bold{x^2-3x-28}`

[ Step Two ] Break Expression Into Groups

`\bold{\left(x^2+4x\right)+\left(-7x-28\right)}`

[ Step Three ] Factor

Factor Out
`\bold{x}` From
`\bold{x^2+4x: \ x\left(x+4\right)}`

Factor Out
`\bold{-7}` From
`\bold{-7x-28: \ -7\left(x+4\right)}`

[ Step Four ] Rewrite Equation

`\bold{x\left(x+4\right)-7\left(x+4\right)}`

[ Step Five ] Factor Out Common Term
`\bold{x+4}`

`\bold{\left(x+4\right)\left(x-7\right)}`

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`\bold{\rightarrow Mordancy \leftarrow}`

Answer 2

This is the way to solve the problem