Question

(3-x^2) (5+x^2) write down in the products

Answer 1

$3 - x {}^{2} (5 + x {}^{2} )$

on opening the bracket...

15+3x² – 5x² – x⁴

15–2x² –x⁴

–x⁴ – 2x² +15


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Answer 2

Here is your answer, hope it helps you...