Question

r²-10r+16<=0 describe the solution

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Answer 1

Answer :

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Explaintion:

Step-1 : Multiply the coefficient of the first term by the constant 1 • 16 = 16

Step-2 : Find two factors of 16 whose sum equals the coefficient of the middle term, which is -10 .

-16 + -1 = -17

-8 + -2 = -10 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -8 and -2

r2 - 8r - 2r - 16

Step-4 : Add up the first 2 terms, pulling out like factors :

r • (r-8)

Add up the last 2 terms, pulling out common factors :

2 • (r-8)

Step-5 : Add up the four terms of step 4 :

(r-2) • (r-8)