Maths Problem
How do you factorise this when it has two values to a different power in the same equation?
x^3+11x^2+30x
x^3+11x^2+30x
Original post by francomanco2309
How do you factorise this when it has two values to a different power in the same equation?
x^3+11x^2+30x
x^3+11x^2+30x
Looks like a hidden quadratic as the 3 exponents are in an arithmetic sequence. So can you factorize an "x", then ...
Original post by francomanco2309
How do you factorise this when it has two values to a different power in the same equation?
x^3+11x^2+30x
x^3+11x^2+30x
Try taking out the common factor 'x'
factorise out an x to leave u with x(x^2+11x+30). then you can solve the quadratic to leave u with x(x+5)(x+6). so x = 0, -5, -6 respectively.
Original post by francomanco2309
How do you factorise this when it has two values to a different power in the same equation?
x^3+11x^2+30x
x^3+11x^2+30x
Original post by SamuelOJ
factorise out an x
Please take a moment to read the Posting Guidelines for this subforum - https://www.thestudentroom.co.uk/showthread.php?t=4919248
We do NOT post full solutions - please stick to hints in future so the OP can do the work. Thanks
Original post by davros
Please take a moment to read the Posting Guidelines for this subforum - https://www.thestudentroom.co.uk/showthread.php?t=4919248
We do NOT post full solutions - please stick to hints in future so the OP can do the work. Thanks
We do NOT post full solutions - please stick to hints in future so the OP can do the work. Thanks
my apologies
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