Math, asked by nitinkaushik000, 1 year ago

Form a quadratic polynomial whose zeroes are -2and5

Answers

Answered by Anonymous

(2+x )(x-5) must be a factor
2x-10+x^2-5x
x^2 -3x -10
is the polynomial

ramsaransing79p8gw0c: hi

ramsaransing79p8gw0c: my name is Rajveer singh

ramsaransing79p8gw0c: i am in 7th standard

ramsaransing79p8gw0c: i have a doubt that

ramsaransing79p8gw0c: If y is directly proportional to 1/x and x =2 when y =20 what is the value of the x when y =1.25

9552688731: that is simple bro. 20 : 1.25 : : 2 : x. 20x = 1.25×2 20x = 2.5 x = 2.5/20. x = 0.125. value of x is 0.125

ramsaransing79p8gw0c: no it's wrong

ramsaransing79p8gw0c: in my book the answer is given 32

ramsaransing79p8gw0c: but in my book process is not given

ramsaransing79p8gw0c: this question is from chapter Direct and indirect variations

Answered by 9552688731

let take that
m = -2
n = 5

general formula of quadratic polynomial

x² - (m+n)x + (mn)

x² -(-2+5)x + (-2×5)

x² -(3)x + (-10)

x² -3x - 10

nitinkaushik000: Thnx bro

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