Question

Can you help me in these questions. I have to find the discriminant and also the two roots of them. Using the formulas in quadratic equations

Answer 1

Answer:

We have to factorise it

${25x}^{2} - 40x + 16 \\ =) \: {(5x)}^{2} + {4}^{2} - 2(5x \times 4)$

${(5x - 4)}^{2}$

do it by same procedure

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