Question

15 (2x - y2) - 1.6 (2x-y)-15​

Answer 1

Answer:

= let 2x -y = a

= 15asquare -16a -15

= 15a square -25a +9a-15

.... {15×(-15)= -225 ,-225= -25×9 , -16= -25+9}

= 5a(3a-5)+3(3a-5)

= (3a-5)(5a+3)

= [ 3(2x-y)-5][5(2x-y)+3]

= (6x-3y-5)(10x-5y+3)

Answer 2

Answer:

65

Step-by-step explanation:

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