((2x-3)(x+5)) का विस्तार क्या है?
What is the expansion of ((2x-3)(x+5))?
Explanation opens after your attempt
A. \(2x^2+7x-15\)correct expansion
Concept
\(2x\cdot5=10x\) and \(-3\cdot x=-3x\), so the middle term is (7x). In exams write all four products.
Why this answer is correct
The correct answer is A. \(2x^2+7x-15\) / correct expansion. \(2x\cdot5=10x\) and \(-3\cdot x=-3x\), so the middle term is (7x). In exams write all four products.
Exam Tip
\(2x\cdot5=10x\) और \(-3\cdot x=-3x\), इसलिए मध्य पद (7x) है। परीक्षा में चारों गुणनफल लिखें।
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