Question

help me please if HCF of 2²a³b⁵and 8a²b³​

Answer 1

2.HCF =12

a×b=1800 (GIVEN)

By formula,

HCF×LCM=a×b

$LCM= \frac{a \times b}{HCF}$

$LCM= \frac{1800}{12}$

LCM=150

3.Given quadratic polynomial is

3x² - kx + 6

Compare given polynomial with

ax² + bx + c , we get ,

a = 3 , b = - k , c = 6

Sum of zeroes of the polynomial is given by ,

$➠ \sf -\dfrac{b}{a}$

where ,

b denotes coefficient of x

a denotes coefficient of x²

Given , Sum of zeroes = 3

$➠ \sf -\dfrac{b}{a} = 3$

$➠ \sf -\dfrac{(-k)}{3}=3$

➠ - (-k) = 3 (3)

$➠ k = 9 \pink{\bigstar}$

Answer 2

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