Show 4x^2+12x+15 has no zeroes
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a=4, b=12, c=15
if b^2-4ac <0 the polynomial has no real zeros
b^2-4ac= (12)^2-(4)(4)(15)
=144 - 4×60
=144 -240
=-96
so, b^2 -4ac <0
so this polynomial has no zeros. ..
Hope this helps. ....Please mark as brainliest. .......
if b^2-4ac <0 the polynomial has no real zeros
b^2-4ac= (12)^2-(4)(4)(15)
=144 - 4×60
=144 -240
=-96
so, b^2 -4ac <0
so this polynomial has no zeros. ..
Hope this helps. ....Please mark as brainliest. .......
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