Question

For real x, find the maximum value of x by x²-5x+9​

Answer 1

Step-by-step explanation:

y=

x

2

−5x+9

x

⇒yx

2

−(5y+1)x+9y=0

As x is real, discriminant ≥0

⇒(5y+1)

2

−36y

2

≥0

⇒11y

2

−10y−1≤0

∴y∈[−

11

1

,1]

i.e. Maximum value of expression is 1.

Hence, option A.

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Answer 2

Answer:

Hello sir please give me solution of 534×1002 in distributive property and I'm in 6 class