(√y - 5)^2 Simplify the radical expression if needed?

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(√y - 5)^2 Simplify the radical expression if needed?

2007-05-04 05:14:16 · 3 answers · asked by Eric M 1 in Science & Mathematics ➔ Mathematics

3 answers

y^2-10√y+25

2007-05-04 05:18:45 · answer #1 · answered by iyiogrenci 6 · 0⤊ 0⤋

(√y - 5)^2=y^2-10√y+25

2007-05-04 05:58:30 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋

Multiply it through just like any other expression in the form of (a + b)^2, combining like terms, but keeping in mind that √y√y = (√y)^2 = y:

(√y - 5)(√y - 5)
√y√y - 5√y - 5√y + 25
y - 10√y + 25

2007-05-04 05:19:52 · answer #3 · answered by Anonymous · 1⤊ 0⤋