Use suitable indentities to find the
following products
i. (x+4) (x+10)
ii. (y2+3/2) (y2-2/3)
Answers
Answered by
0
Answer:
(x+a) (x+b) is the identity
Answered by
1
Step-by-step explanation:
1.(x+4)(x+10)
=x^2+10x+4x+40
=x^2+14x+40
=x^2+10x+4x+40
=x(x+10)+4(x+10)
=>x+4=0 and x+10=0
=>x=-4 or -10
2.(y2+3/2)(y2-2/3)
=y4-(2y2/3)+(3y2/2)-1
=6y4-4y2+9y2-6
=6y4+5y2-6
=6y4+6y2-1y2-6
=6y2(y2+1)-1(y2+6)
=y=√1 or √6 or √1/6
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