1.

Find the product and verify the result fo a=3, b=5 (a^2+ab)(a^2-ab)

Answer»

ANSWER:

-144

Step-by-step explanation:

(a^2+ab)(a^2-ab)

[(a+b) (a-b) ]=a^2-b^2

(a^2)^2-(ab)^2

a^4-(ab)^2

[a=3;b=5) ]

[(3)^4] - [(3)(5)]^2

3×3×3×3 - (15)^2

81-225

-144



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