Thursday 30 June 2016

ALGEBRA 1


Multiply 2x - 7y by -9a

solution

= -9a(2x - 7y)

= (-9a x 2x) + (-9a x -7y)

= -12ax + 63ay     [since -9a x -7y = +63ay ]

TRY THIS...................


Multiply 12p - 7q by  -4a

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