By Factoring And Using Quadratic Formula x raise to two minus 10x is equals to negative 21

or

Step-by-step explanation:

Given

Required

Solve by factoring & quadratic formula

By Factoring:

Equate to 0

Expand:

Factorize:

or

or

By quadratic

Equate to 0

For

x is solved using:

where

; ;

So:

Split

or

or

or

50

step-by-step explanation:

b. x + 1

step-by-step explanation:

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