maths coursework helppppppppppp pleeeasse *falls off her chair*

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Mishy
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#1
Report Thread starter 16 years ago
#1
i am really bad at maths and i cant solve thisequation/ algebra thingy

what is 'p' multiplied by 'p+(n-1)+10(n-1)' ?

and what is 'p+(n-1)' multiplied by ' p+10(n-1)

please if you know then reply... *waves helplessly* and i need this

urgently....
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john !!
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Report 16 years ago
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(Original post by Mishy)
i am really bad at maths and i cant solve thisequation/ algebra thingy

what is 'p' multiplied by 'p+(n-1)+10(n-1)' ?

and what is 'p+(n-1)' multiplied by ' p+10(n-1)

please if you know then reply... *waves helplessly* and i need this

urgently....
what is 'p' multiplied by 'p+(n-1)+10(n-1)' ?

add p onto each of the parts:
p^2 + p(n-1) + 10p(n-1)

then multiply out:
p^2 + pn - p + 10pn - 10p

and simplify:
p^2 +11pn - 11p

and what is 'p+(n-1)' multiplied by ' p+10(n-1)

multiply out small brackets:
(p + n - 1)(p + 10n - 10)

multiply out totally:
p^2 + pn - p + 10np + 10n^2 - 10n -10p - 10n + 10

simplyfy:
p^2 + 10n^2 + 11pn - 11p- 20n + 10
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