Medium Math Class 9 Level 4

Which is the correct factorization of x² - 17x + 72?

x² - 17x + 72 का सही गुणनखंड कौन सा है?

A) (x - 8)(x - 9) / (x - 8)(x - 9) B) (x + 8)(x + 9) / (x + 8)(x + 9) C) (x - 6)(x - 12) / (x - 6)(x - 12) D) (x + 6)(x + 12) / (x + 6)(x + 12)
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Correct Answer

A. (x - 8)(x - 9) / (x - 8)(x - 9)

Explanation

The numbers 8 and 9 have product 72 and sum 17, so the factors are (x - 8)(x - 9).

8 और 9 का गुणनफल 72 और योग 17 है इसलिए गुणनखंड (x - 8)(x - 9) हैं।

Related Questions

Easy Math Class 10 Level 1

What is the area of a circle with radius 7 cm when π = 22/7?

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल कितना होगा जब π = 22/7 हो?

A. 44 सेमी² / 44 cm² B. 77 सेमी² / 77 cm² C. 154 सेमी² / 154 cm² D. 308 सेमी² / 308 cm²
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