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Factorize each of the following expres...

Factorize each of the following expressions:
`x^2+4x-21`

Text Solution

Verified by Experts

`x^2+4x-21`
By using mid-term splitting, we get:
`=x^2-3x+7x-21`
`=x(x-3)+7(x-3)`
`=(x-3)(x+7)`
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