आयत मॉडल में ऊपर की ओर (x) और (4) तथा बाईं ओर (x) और (-6) लिखा है। कुल क्षेत्रफल कौन-सा है?
In a rectangle model, the top labels are (x) and (4), and the left labels are (x) and (-6). What is the total area?
Explanation opens after your attempt
A. \(x^2-2x-24\)correct signed area
Concept
((x+4)(x-6)=x-2-2x-24). In exams find the sign of each small rectangle separately.
Why this answer is correct
The correct answer is A. \(x^2-2x-24\) / correct signed area. ((x+4)(x-6)=x-2-2x-24). In exams find the sign of each small rectangle separately.
Exam Tip
((x+4)(x-6)=x-2-2x-24) है। परीक्षा में हर छोटे आयत का चिन्ह अलग निकालें।
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