Question

in question no.7. how do i up verify?...plz tell i have exam tomorrow....​

Answer 1

Answer:

Step-by-step explanation:

to verify zeroes

compare the given equation with a$x^{2}$+bx+c=0 and get the value of a,b and c dn't forget the sign

now get the zeroes of the equation

sum of zeroes=$\frac{-b}{a}$

product of zeroes=$\frac{c}{a}$

Answer 2

1

$8 {x}y \times 3 {x}^{2} {y}^{2} \\ = (8 \times 3) ({x}^{2} + x)( {y}^{2} + y) \\ = 24 {x}^{3} {y}^{3} \\ to \: verify \: we \: have \: x = \frac{1}{2} and \: y = - 2 \\ \\ =$

$= 24( \frac{1}{2} ) ^{3} ( - 2) ^{3} \\ = 24( \frac{1}{8} )( - 8) \\ = 24 \times - 1 \\ = - 24$