Question

Find the value of 5 xsquare+10x-9, when
i)x=0 ii)x=2 iii)x=-4​

Answer 1

Step-by-step explanation:

5x^2 +10x -9

I )when x =0

5(0)^2 + 10×0 -9 = -9

ii ) when x = 2

5(2)^2 +10 × 2 - 9

= 20 +20 -9

= 31

iii) when X=4

5(4)^2 + 10×4 -9

80 +40 -9

120 - 9

111