- 4x² – 81x factorize it
Answers
Answer:
Step-by-step explanation:
4x2+81x-25
Final result :
4x2 + 81x - 25
Step by step solution :
Step 1 :
Equation at the end of step 1 :
(22x2 + 81x) - 25
Step 2 :
Trying to factor by splitting the middle term
2.1 Factoring 4x2+81x-25
The first term is, 4x2 its coefficient is 4 .
The middle term is, +81x its coefficient is 81 .
The last term, "the constant", is -25
Step-1 : Multiply the coefficient of the first term by the constant 4 • -25 = -100
Step-2 : Find two factors of -100 whose sum equals the coefficient of the middle term, which is 81 .
-100 + 1 = -99
-50 + 2 = -48
-25 + 4 = -21
-20 + 5 = -15
-10 + 10 = 0
-5 + 20 = 15
-4 + 25 = 21
-2 + 50 = 48
-1 + 100 = 99
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Final result :
4x2 + 81x - 25
hope it will help u buddy............
Step-by-step explanation:
4x²-9x²
x(2x²-9x²)
x(2x+9) (2x-9)