1.

Find p for which roots of 4x²+px+9=0 are equal ​

Answer»

Answer:

p=±12

Step-by-step EXPLANATION:

A quadratic EQUATION ax²+bx+c=0 will have equal roots when b²-4ac=0

→p²-4(4)(9)=0

p²-144=0

p²=144

p=±12.



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