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

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1

c) yes, because of asa or aas