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Factorise the given question: 3p^-7p-6​

User Avigil
by
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1 Answer

3 votes

Answer:

(p−3)⋅(3p+2)

Explanation:

STEP 1 :

Equation at the end of step 1

(3p2 - 7p) - 6

STEP 2 :

Trying to factor by splitting the middle term

2.1 Factoring 3p2-7p-6

The first term is, 3p2 its coefficient is 3 .

The middle term is, -7p its coefficient is -7 .

The last term, "the constant", is -6

Step-1 : Multiply the coefficient of the first term by the constant 3 • -6 = -18

Step-2 : Find two factors of -18 whose sum equals the coefficient of the middle term, which is -7 .

-18 + 1 = -17

-9 +2 = -7 That's it

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

3p2 - 9p + 2p - 6

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

3p • (p-3)

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

2 • (p-3)

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

(3p+2) • (p-3)

Which is the desired factorization

Final result :

(p - 3) • (3p + 2)

User Arbiter Chil
by
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