4x²-x+5 factorie solution
Answers
Answer:
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Answer:
Sayed Muhammad Ayaan
(22x2 -x) -5=0
Step-by-step explanation:
Factoring 4x2-x-5
The first term is, 4x2 its coefficient is 4 .
The middle term is, -x its coefficient is -1 .
The last term, "the constant", is -5
Step-1 : Multiply the coefficient of the first term by the constant 4 • -5 = -20
Step-2 : Find two factors of -20 whose sum equals the coefficient of the middle term, which is -1 .
-20 + 1 = -19
-10 + 2 = -8
-5 + 4 = -1 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -5 and 4
4x2 - 5x + 4x - 5
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (4x-5)
Add up the last 2 terms, pulling out common factors :
Step-5 : Add up the four terms of step 4 :
(x+1) • (4x-5)
Which is the desired factorization
1 • (4x-5)