math final tmrw!!!!!!!

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1) wat term should be added to x squared+22x, so tat the result is a perfect square trrinomial

  • math final tmrw!!!!!!! -

    I think that is 1/2 the b term (1/2*22 and that squared) so the term to be added would be 11^2 = 121.
    x^2 + 22x + 121 = (x+11)(x+11)

  • math final tmrw!!!!!!! -

    (x + a)(x + a)
    =x^2 + 2ax + a^2

    In the problem,
    2ax=22x
    2a=22
    a=11
    substituting back
    (x + 11)(x + 11)
    x^2 + 22x + 121

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