Can someone help me solving this problem with solution.
step by step
X2 - 2x - 820
Share
Can someone help me solving this problem with solution.
step by step
X2 - 2x - 820
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Factoring x2+2x-820
The first term is, x2 its coefficient is 1 .
The middle term is, +2x its coefficient is 2 .
The last term, "the constant", is -820
Step-1 : Multiply the coefficient of the first term by the constant 1 • -820 = -820
Step-2 : Find two factors of -820 whose sum equals the coefficient of the middle term, which is 2 .
-820 + 1 = -819
-410 + 2 = -408
-205 + 4 = -201
-164 + 5 = -159
-82 + 10 = -72
-41 + 20 = -21
-20 + 41 = 21
-10 + 82 = 72
-5 + 164 = 159
-4 + 205 = 201
-2 + 410 = 408
-1 + 820 = 819
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Final result :
x2 + 2x - 820