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

16m²-__+25​


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] 16m^2 - \_\_\_ + 25 [/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{16m^2}\sqrt{25} [/tex]

  • [tex] t = 2(4m)(5) [/tex]

  • [tex] t = 40m [/tex]

[tex] \large \therefore \underline{\boxed{\tt 16m^2 - \underline{\,\purple{40m}\,} + 25 }} [/tex]

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