Question

factorise-
15+h²-8h=0​

Answer 1

Answer:

h = 5 or 3

Step-by-step explanation:

h^2 - 8h + 15 = 0

h^2 - 5h - 3h + 15 = 0

h ( h - 5 ) - 3 ( h - 5 ) = 0

( h - 5 ) ( h - 3 ) = 0

h = 5 or 3

Answer 2

3 and 5 are your answer...

$15 + {h}^{2} - 8h \\ rearranging... \: \\ {h}^{2} - 8h + 15 \\ {h}^{2} - 3h - 5h + 15 \\ h(h - 3) - 5(h - 3) \\ (h - 3)(h - 5) \\ so \: either \: h = 3 \: or \: h = 5 \\ both \: are \: correct$

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