1.

(y square -5/2)(y square-7/2)

Answer»

so your ANS is = y^4 - 6y^2 + 35/4

The formula for (a-b)(c-d) is

= AC - ad - bc + ad

Here, a = y^2

b=5/2

c= y^2

d=7/2

i HOPE you understood...:)



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