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Determine the middle term of the following trinomials to make it a perfect square.

64+__+49m²​


Sagot :

✏️PST

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[tex] \large \bold{\blue{PROBLEM:}} [/tex] Determine the middle term of the following trinomials to make it a perfect square.

  • [tex] 64 + \_\_\_ + 49m^2 [/tex]

[tex] \large \bold{\blue{SOLUTION:}} [/tex] To determine the middle term, refer s, t, and u as the first, middle, and last term in PST respectively. "Twice the product of roots of the first and last term is the middle term"

  • [tex] t = 2\sqrt{s}\sqrt{u} [/tex]

  • [tex] t = 2\sqrt{64}\sqrt{49m^2} [/tex]

  • [tex] t = 2(8)(7m) [/tex]

  • [tex] t = 112m [/tex]

[tex] \large \therefore \underline{\boxed{\tt 64 + \underline{\,\purple{112m}\,} + 49m^2 }} [/tex]

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