Please help in solving Q9 of above image. I think I must factor the expression or express it as sum of squares. But I am not able to. Please help. Thank you in advance.
In above image ,in last line, it is "all of" rather than "cell of"
Please help in solving Q9 of above image. I think I must factor the expression or express it as sum of squares. But I am not able to. Please help. Thank you in advance.
In above image ,in last line, it is "all of" rather than "cell of"
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