factorise 4xsqure+17x +15
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Answered by
4
4x²+17x+15,
4x²+(12+5)x+15
4x²+12x+5x+15,
4x(x+3)+5(x+3),
(x+3)(4x+5)
4x²+(12+5)x+15
4x²+12x+5x+15,
4x(x+3)+5(x+3),
(x+3)(4x+5)
Answered by
0
step 1
multiply the 4 and 15
we got 60
step 2:
find a such that their multiplication is 60
here we found 5×12=60
and 5+12=17
so, putting this
we got
4x^2+12x+5x+15
4x(x+3)+5(x+3)
(x+3)(4x+5)
so, their factor is (x+3)and (4x+5)
"SAY NO TO RACISM"
"Help the poor indian"
multiply the 4 and 15
we got 60
step 2:
find a such that their multiplication is 60
here we found 5×12=60
and 5+12=17
so, putting this
we got
4x^2+12x+5x+15
4x(x+3)+5(x+3)
(x+3)(4x+5)
so, their factor is (x+3)and (4x+5)
"SAY NO TO RACISM"
"Help the poor indian"
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