Factorise = 121a²-16b²-56bc-49c²
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Answer:
STEP
1
:
Equation at the end of step 1
(((121•(a2))-(16•(b2)))-56bc)-72c2
STEP
2
:
Equation at the end of step
2
:
(((121 • (a2)) - 24b2) - 56bc) - 72c2
STEP
3
:
Equation at the end of step
3
:
((112a2 - 24b2) - 56bc) - 72c2
STEP
4
:
Final result :
121a2 - 16b2 - 56bc - 49c2
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