समीकरण \(-4x^2+6x-9=0\) के लिए (a-b+c) का मान क्या है?
For the equation \(-4x^2+6x-9=0\), what is the value of (a-b+c)?
Explanation opens after your attempt
B. (-19)
Concept
Here (a=-4), (b=6), (c=-9). Hence (a-b+c=-4-6-9=-19).
Why this answer is correct
The correct answer is B. (-19). Here (a=-4), (b=6), (c=-9). Hence (a-b+c=-4-6-9=-19).
Exam Tip
यहाँ (a=-4), (b=6), (c=-9) हैं। इसलिए (a-b+c=-4-6-9=-19) है।
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