Question

x square -19x +63 answere ​

Answer 1

Answer:

The first term is, x2 its coefficient is 1 .

The middle term is, -2x its coefficient is -2 .

The last term, "the constant", is -63

Step-1 : Multiply the coefficient of the first term by the constant 1 • -63 = -63

Step-2 : Find two factors of -63 whose sum equals the coefficient of the middle term, which is -2 .

-63 + 1 = -62

-21 + 3 = -18

-9 + 7 = -2 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -9 and 7

x2 - 9x + 7x - 63

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

x • (x-9)

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

7 • (x-9)

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

(x+7) • (x-9)

Which is the desired factorization

Step-by-step explanation:

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