8-27b^3-343c^3-126bc factorise
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Answer:
Step-by-step explanation:
8-27b3-343c3-126bc
Final result :
-27b3 - 126bc - 343c3 + 8
Step by step solution :
Step 1 :
Equation at the end of step 1 :
((8 - (27 • (b3))) - 73c3) - 126bc
Step 2 :
Equation at the end of step 2 :
((8 - 33b3) - 73c3) - 126bc
Step 3 :
Step 4 :
Pulling out like terms :
4.1 Pull out like factors :
-27b3 - 126bc - 343c3 + 8 =
-1 • (27b3 + 126bc + 343c3 - 8)
Checking for a perfect cube :
4.2 27b3 + 126bc + 343c3 - 8 is not a perfect cube
Final result :
-27b3 - 126bc - 343c3 + 8
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