Math, asked by kadigagansaab1322, 1 month ago

Q7. ਹੇਠ ਲਿਖੀਆਂ  ਵਿੱਚੋਂ ਕਿਹੜਾ ਬਹੁਪਦੀ  3x² - 8x + 5 ਦਾ ਇੱਕ ਸਿਫਰ ਹੈ?          Which of the following is a zero of the polynomial 3x² - 8x + 5 ?*
0
-1
1
2​

Answers

Answered by y2krahulsingh
1

Answer:

3x^2 - 8x + 5 = 0

or, 3x^2 - (3x + 5x) + 5 = 0

or, 3x^2 - 3x - 5x + 5 = 0

or, 3x (x - 1) - 5 (x - 1) = 0

or, (x - 1) (3x - 5) = 0

Either,

x - 1 = 0

or, x = 1 (ans)

Or,

3x - 5 = 0

or, 3x = 5

or, x = 5/3

Answer :- The zero of the polynomial (3x^2 - 8x + 5)

is 1

Answered by vk3267517
1

Question:

Which of the following is a zero of the polynomial 3x^{2}  - 8x + 5 ?

Given:

polynomial 3x^{2}  - 8x + 5

Find:

zero of the polynomial 3x^{2}  - 8x + 5

Answer:

1

Step-by-step explanation:

3x^{2}-8x+5=0\\ 3x^{2}-3x-5x+5=0\\3x(x-1)-5(x-1)=0\\(3x-5)(x-1)=0\\3x-5=0       /               x-1=0\\3x=5  / x=1\\x=\frac{5}{3} /x=1

Hence x=\frac{5}{3} /x=1 is a zero of the polynomial 3x^{2}  - 8x + 5 .

Hence x=1 is a zero of the polynomial 3x^{2}  - 8x + 5 .

#SPJ3

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