-xsquare-8x-15 factorise the trinomial
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Answered by
1
Step-by-step explanation:
x² - 8x -15 =0
x² -(5+3)x -15=0
x² -5x -3x -15 =0
x(x -5) -3(x
it has no real root because (b²-4ac) is -ve
Answered by
1
Answer:
x^2-5x-3x-15=0
=x(x-5)-3(x-5)=0
=(x-5)(x-3)=0
x-5=0
=x=5
x-3=0
=x=3
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