Question

x square - 4 x - 45 ​

Answer 1

${x}^{2} - 4x - 45$

Answer 2

Step-by-step explanation:

x2-4x-45

d=b2-4ac

d=(-4)^2-4(1)(-45)

d=16-(-180)

d=16+180

d=196

x=-b+-√d/2a

x=-(-4)+-√196/2(1)

x=4+-14/2

x=4+14/2

x=18/2

x=9

x=4-14/2

x=-10/2

x=-5

so,x=9 and x=-5

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