Question

Factorise the expression: 1)5x2y-15xy2 2) -16z+20z2 answer pls urgent

Answer 1

Answer:

a) 5x²y - 15xy²

= 5xy(x) - 5xy(3y)

= 5xy( x - 3y )

b) ( -16z ) + 20z²

= 20z² - 16z

= 4z(5z) - 4z(4)

=4z( 5z - 4 )

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Answer 2

Answer:

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Step-by-step explanation: