2x²-21x+32
factorise
Answers
Answer:
(1): "x2" was replaced by "x^2".
STEP 1 :Equation at the end of step 1
(2x2 - 21x) - 32
STEP 2 :Trying to factor by splitting the middle term 2.1 Factoring 2x2-21x-32
The first term is, 2x2 its coefficient is 2 .
The middle term is, -21x its coefficient is -21 .
The last term, "the constant", is -32
Step-1 : Multiply the coefficient of the first term by the constant 2 • -32 = -64
Step-2 : Find two factors of -64 whose sum equals the coefficient of the middle term, which is -21 .
-64 + 1 = -63
-32 + 2 = -30
-16 + 4 = -12
-8 + 8 = 0
-4 + 16 = 12
-2 + 32 = 30
-1 + 64 = 63
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Final result :
2x2 - 21x - 32