Math, asked by Prachi20390, 7 months ago

all by quadratic formula method
1.) 9x²-13x-10=0 (2.) 2x²-21x+40= 0 (3)2x²-21x+40=0

Answers

Answered by prabhatkumar417

1

Step-by-step explanation:

first we find d means determinant

then put the value in the formula

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