Question

solve this question please

Answer 1

hii friend

a)
=x^3 - x^2 + 7 + -9x + 10x^2 - 6 + 2x - 3x^2 - 5
=x^3- x^2 + 10x^2 - 3x^2 - 9x + 2x + 7 - 6 - 5
=x^3 - 6x^2 -7x - 4
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b)
at first simply each equation and then add it

2/3m - 4/5n + 3/5p
=15×2/3m - 15×4/5n + 15×3/5p
=5×2m - 3×4n + 3×3p
=10m -12n + 9p --------》1
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-3/4m - 5/2n + 2/3p
=12×-3/4m - 12×5/2n + 12×2/3p
=3×-3m - 6×5n + 4×2p
=-9m - 30n + 8p ----------》2
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5/2m + 3/4p - 5/6n
=12×5/2m + 12×3/4p - 12×5/6n
=6×5m + 3×3p - 2×5n
=30m + 9p - 10 n ------------》3
____________
add 1,2 &3
____》
10m - 12n + 9p+ -9m -30n + 8p+30m + 9p -10n
=31m - 52n + 26p

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c)
=6m^2n +3mn - 2n^2 +n^2 - mn - m^2n
=5m^2n + 2mn - n^2
_______________________
d)
=x^3 - x^2+ 7 + 9x + 10x^2 - 6+ 2x - 3x^2 - 5
=x^3 + 6x^2 + 11x - 4

Hope it helps you
Thank you

Answer 2

Answer:

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